JP6318998B2 - Electrolytic analyzer - Google Patents

Electrolytic analyzer Download PDF

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JP6318998B2
JP6318998B2 JP2014179958A JP2014179958A JP6318998B2 JP 6318998 B2 JP6318998 B2 JP 6318998B2 JP 2014179958 A JP2014179958 A JP 2014179958A JP 2014179958 A JP2014179958 A JP 2014179958A JP 6318998 B2 JP6318998 B2 JP 6318998B2
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beaker
electrode
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JP2016053537A (en
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高橋　功
高橋　　功
久成 井上
久成 井上
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Sumitomo Metal Mining Co Ltd
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Description

本発明は、電解分析装置に関する。さらに詳しくは、測定対象溶液の金属濃度を分析する電解分析方法に用いられる電解分析装置に関する。   The present invention relates to an electrolytic analyzer. More specifically, the present invention relates to an electrolytic analyzer used in an electrolytic analysis method for analyzing a metal concentration of a measurement target solution.

測定対象溶液の金属濃度を分析する方法として電解分析方法（ＪＩＳ Ｈ１１０１）が知られている（例えば、特許文献１）。電解分析方法では、金属を含有する測定対象溶液を所定量ビーカに採取し、円筒状白金陰極と螺旋状白金陽極とを用いて含有金属を電解析出させ、析出した金属量から測定対象溶液の金属濃度を分析する。   An electrolytic analysis method (JIS H1101) is known as a method for analyzing the metal concentration of a solution to be measured (for example, Patent Document 1). In the electrolytic analysis method, a predetermined amount of a measurement target solution containing a metal is collected in a beaker, and the contained metal is electrolytically deposited using a cylindrical platinum cathode and a spiral platinum anode. Analyze metal concentration.

一般に、電解分析方法に用いられる電解分析装置は、ビーカを載せるビーカ台と、電極を支持する電極支持部とを備えている。電極支持部は支柱を有するスタンドに固定されており上下動可能となっている。電極支持部を上下動させることで、ビーカに電極を挿入抜去できるようになっている。また、電極支持部には、電極に電流を供給する電線の端部がネジ止めされている。   In general, an electrolytic analysis apparatus used in an electrolytic analysis method includes a beaker base on which a beaker is placed and an electrode support portion that supports an electrode. The electrode support portion is fixed to a stand having a support column and can move up and down. The electrode can be inserted into and removed from the beaker by moving the electrode support portion up and down. Moreover, the end part of the electric wire which supplies an electric current to an electrode is screwed to the electrode support part.

特開昭５８−１０２１４５号公報JP 58-102145 A

上記電解分析装置は、電極支持部を上下動させると電線も引き摺られて動くため、電極支持部の動作が制限され動かし難いという問題がある。そのため、電極をビーカ内の所定位置に配置することが困難であるという問題がある。   When the electrode support part is moved up and down, the electrolysis analyzer has a problem that the operation of the electrode support part is limited and difficult to move because the electric wire is also dragged and moved. Therefore, there exists a problem that it is difficult to arrange | position an electrode in the predetermined position in a beaker.

また、上記電解分析装置は、電極支持部を上下動させると電線のネジ止め部分が回動する。電解が終了するたびに電極の付け換えのために電極支持部を上下動させる必要があるため、測定を繰り返すと電線を固定するネジが緩んでくるという問題がある。このネジが緩むと、電線と電極との接触抵抗が増し電極間に流れる電流が低下するため、電解に要する時間が長くなり、測定に支障がでるという問題がある。   Further, in the electrolytic analyzer, when the electrode support portion is moved up and down, the screwing portion of the electric wire rotates. Since it is necessary to move the electrode support portion up and down to change the electrode every time electrolysis is completed, there is a problem that the screw fixing the electric wire is loosened when the measurement is repeated. When the screw is loosened, the contact resistance between the electric wire and the electrode is increased, and the current flowing between the electrodes is decreased. Therefore, there is a problem that the time required for electrolysis is increased and the measurement is hindered.

本発明は上記事情に鑑み、電極の配置が容易であり、かつ、電線固定用のネジの緩みを抑制できる電解分析装置を提供することを目的とする。   In view of the above circumstances, an object of the present invention is to provide an electrolytic analyzer that can easily dispose electrodes and can suppress loosening of a screw for fixing an electric wire.

第１発明の電解分析装置は、ビーカ内の測定対象溶液に電極を浸漬し、電解により該電極に電着した金属量から該測定対象溶液の金属濃度を求めるための電解分析装置であって、架台と、前記架台に設けられた電解部と、を備え、前記電解部は、前記ビーカが載せられるビーカ台と、前記架台に固定され、前記ビーカ台を上下動可能に支持するビーカ台支持棒と、前記架台に固定され、前記電極および該電極に電流を供給する電線が固定される電極支持部と、を備え、前記ビーカ台支持棒および前記電極支持部は、前記ビーカ台を上下動させることで前記ビーカに前記電極を挿入抜去できるように配置されており、前記ビーカ台は、前記ビーカ台支持棒を軸として該ビーカ台支持棒の周りを旋回可能となっていることを特徴とする。
第２発明の電解分析装置は、ビーカ内の測定対象溶液に電極を浸漬し、電解により該電極に電着した金属量から該測定対象溶液の金属濃度を求めるための電解分析装置であって、架台と、前記架台に設けられた電解部と、を備え、前記電解部は、前記ビーカが載せられるビーカ台と、前記架台に固定され、前記ビーカ台を上下動可能に支持するビーカ台支持棒と、前記架台に固定され、前記電極および該電極に電流を供給する電線が固定される電極支持部と、を備え、前記ビーカ台支持棒および前記電極支持部は、前記ビーカ台を上下動させることで前記ビーカに前記電極を挿入抜去できるように配置されており、前記架台は、鉛直に設けられた壁部を有し、前記ビーカ台支持棒は、前記壁部の前面に固定されており、前記電極支持部は、棒状の電極支持棒であり、前記壁部を貫通して固定されており、前記電極支持棒の前面側端部に前記電極が固定され、背面側端部に前記電線が固定されていることを特徴とする。
第３発明の電解分析装置は、第２発明において、前記ビーカ台は、前記ビーカ台支持棒を軸として旋回可能となっていることを特徴とする。
第４発明の電解分析装置は、第１、第２または第３発明において、前記電解部を複数備えることを特徴とする。 The electrolytic analyzer of the first invention is an electrolytic analyzer for determining the metal concentration of the solution to be measured from the amount of metal electrodeposited on the electrode by electrolysis by immersing the electrode in the solution to be measured in a beaker. A base, and an electrolysis unit provided on the base, wherein the electrolysis unit is a beaker base on which the beaker is placed, and a beaker base support rod that is fixed to the base and supports the beaker base in a vertically movable manner. And an electrode support part fixed to the gantry and to which the electrode and an electric wire for supplying current to the electrode are fixed. The beaker support bar and the electrode support part move the beaker table up and down. The beaker is arranged so that the electrode can be inserted into and removed from the beaker, and the beaker base is pivotable about the beaker base support bar around the beaker base support bar. .
The electrolytic analyzer of the second invention is an electrolytic analyzer for immersing an electrode in a solution to be measured in a beaker and determining the metal concentration of the solution to be measured from the amount of metal electrodeposited on the electrode by electrolysis A base, and an electrolysis unit provided on the base, wherein the electrolysis unit is a beaker base on which the beaker is placed, and a beaker base support rod that is fixed to the base and supports the beaker base in a vertically movable manner. And an electrode support part fixed to the gantry and to which the electrode and an electric wire for supplying current to the electrode are fixed. The beaker support bar and the electrode support part move the beaker table up and down. The electrodes are arranged so that the electrodes can be inserted into and removed from the beaker, the gantry has a wall portion provided vertically, and the beaker support rod is fixed to the front surface of the wall portion. The electrode support is a rod The electrode support bar is fixed through the wall, the electrode is fixed to the front side end of the electrode support bar, and the electric wire is fixed to the back side end. And
The electrolytic analyzer of the third invention is characterized in that, in the second invention, the beaker base is pivotable about the beaker base support rod.
According to a fourth aspect of the present invention, there is provided an electrolytic analyzer according to the first, second, or third aspect, comprising a plurality of the electrolysis units.

第１発明によれば、ビーカ台とともにビーカを上下動させることでビーカに電極を挿入抜去できるので、電極の配置が容易である。また、電極支持部が架台に固定されており、電線の固定部分が回動しないので、電線固定用のネジの緩みを抑制できる。さらに、ビーカ台を旋回させることで、ビーカを電極から離れた位置に移動できるので、ビーカの交換作業が行いやすい。
第２発明によれば、電線が壁部の背面に配置されるので、不注意により作業員が電線に触れることを防止でき、電線固定用のネジの緩みを防止できる。
第３発明によれば、ビーカ台を旋回させることで、ビーカを電極から離れた位置に移動できるので、ビーカの交換作業が行いやすい。
第４発明によれば、複数の測定対象溶液を並行して電解できるので、効率よく分析できる。 According to the first invention, since the electrodes can be inserted into and removed from the beaker by moving the beaker up and down together with the beaker base, the arrangement of the electrodes is easy. Moreover, since the electrode support part is being fixed to the mount and the fixed part of an electric wire does not rotate, the loosening of the screw for electric wire fixation can be suppressed. Furthermore, since the beaker can be moved to a position away from the electrode by turning the beaker base, it is easy to replace the beaker.
According to the second invention, since the electric wire is arranged on the back surface of the wall portion, it is possible to prevent an operator from inadvertently touching the electric wire, and to prevent loosening of the screw for fixing the electric wire.
According to the third aspect of the invention, the beaker can be moved to a position away from the electrode by turning the beaker stand, so that the beaker can be easily replaced.
According to the fourth aspect of the invention, since a plurality of measurement target solutions can be electrolyzed in parallel, analysis can be performed efficiently.

本発明の一実施形態に係る電解分析装置の正面図である。It is a front view of the electrolytic analyzer which concerns on one Embodiment of this invention. 同電解分析装置の平面図である。It is a top view of the same electrolytic analyzer. 同電解分析装置の電解部の正面図である。It is a front view of the electrolysis part of the same electrolytic analyzer. 同電解分析装置の電解部の平面図である。It is a top view of the electrolysis part of the same electrolytic analyzer. 同電解分析装置の電解部の正面図であって、ビーカ台を下降、旋回させた状態を示す図である。It is a front view of the electrolysis part of the same electrolysis analyzer, and is a figure showing the state where the beaker stand was lowered and turned.

つぎに、本発明の実施形態を図面に基づき説明する。
図１および図２に示すように、本発明の一実施形態に係る電解分析装置Ａは、１つの架台１０に３つの電解部２０が設けられた構成である。架台１０は、板状の壁部１１と、壁部１１に設けられた足部１２とからなる。壁部１１は足部１２により鉛直に立設されている。なお、電解部２０の数は特に限定されず、１つでもよいし、２つ以上の複数でもよい。 Next, an embodiment of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 and 2, the electrolytic analysis apparatus A according to an embodiment of the present invention has a configuration in which three electrolytic units 20 are provided on one gantry 10. The gantry 10 includes a plate-like wall portion 11 and a foot portion 12 provided on the wall portion 11. The wall portion 11 is erected vertically by the foot portion 12. In addition, the number of the electrolysis parts 20 is not specifically limited, One may be sufficient and two or more plurality may be sufficient.

つぎに、電解部２０の詳細を説明する。
図３および図４に示すように、電解部２０は、ビーカｂが載せられるビーカ台３０と、ビーカ台３０を支持するビーカ台支持棒４０と、電極（陽極ａおよび陰極ｃ）を支持する一対の電極支持棒５０、５０とからなる。 Next, details of the electrolysis unit 20 will be described.
As shown in FIG. 3 and FIG. 4, the electrolysis unit 20 includes a pair of beakers 30 on which the beakers b are placed, beaker support rods 40 that support the beakers 30, and electrodes (anode a and cathode c). Electrode support rods 50 and 50.

ビーカ台支持棒４０は丸棒部材であり、その両端には基部４１、４１が設けられている。これら基部４１、４１が壁部１１の前面に上下に固定されている。そのため、ビーカ台支持棒４０は壁部１１の前面に固定されており、壁部１１と所定距離離間して並行に鉛直方向に沿って設けられている。   The beaker base support bar 40 is a round bar member, and bases 41 and 41 are provided at both ends thereof. These base parts 41 and 41 are fixed to the front surface of the wall part 11 up and down. Therefore, the beaker base support bar 40 is fixed to the front surface of the wall portion 11 and is provided along the vertical direction in parallel with the wall portion 11 at a predetermined distance.

ビーカ台３０は、略円盤状の部材であり水平に設けられている。ビーカ台３０の上面は若干凹んでおり、その凹部にビーカｂが載せられる。また、ビーカ台３０の側面にはアーム３１が設けられている。アーム３１の先端部には孔が形成されており、この孔にビーカ台支持棒４０が通されている。アーム３１の孔の直径はビーカ台支持棒４０の直径よりも若干大きく形成されており、互いに摺動可能となっている。そのため、ビーカ台３０はビーカ台支持棒４０に沿って上下動可能であり、かつ、ビーカ台支持棒４０を軸として水平面内で旋回可能となっている。   The beaker base 30 is a substantially disk-shaped member and is provided horizontally. The upper surface of the beaker base 30 is slightly recessed, and the beaker b is placed in the recessed portion. An arm 31 is provided on the side surface of the beaker base 30. A hole is formed at the tip of the arm 31, and the beaker support rod 40 is passed through this hole. The diameter of the hole of the arm 31 is slightly larger than the diameter of the beaker support rod 40 and can slide with respect to each other. Therefore, the beaker base 30 can move up and down along the beaker base support bar 40 and can turn in a horizontal plane with the beaker base support bar 40 as an axis.

アーム３１の先端部には側面から前記孔に通ずるネジ孔が形成されており、そのネジ孔に蝶ボルト３２がねじ込まれている。蝶ボルト３２をねじ込むとボルト先端がビーカ台支持棒４０に押し付けられ、アーム３１がビーカ台支持棒４０に固定される。そのため、蝶ボルト３２を緩めるとビーカ台３０を上下動および旋回させることができ、蝶ボルト３２を締めるとビーカ台３０を任意の上下位置、旋回角度とした状態で固定することができる。   A screw hole that communicates with the hole from the side surface is formed at the tip of the arm 31, and a butterfly bolt 32 is screwed into the screw hole. When the butterfly bolt 32 is screwed, the tip of the bolt is pressed against the beaker base support bar 40, and the arm 31 is fixed to the beaker base support bar 40. Therefore, when the butterfly bolt 32 is loosened, the beaker base 30 can be moved up and down and turned, and when the butterfly bolt 32 is tightened, the beaker base 30 can be fixed in an arbitrary vertical position and turning angle.

なお、アーム３１はビーカ台支持棒４０の端部に達すると基部４１に接触するため、それ以上上昇または下降することができない。そのため、ビーカ台３０はビーカ台支持棒４０の長さの範囲内で上下動可能であり、また、ビーカ台支持棒４０から脱落することがない。   In addition, since the arm 31 contacts the base 41 when it reaches the end of the beaker support rod 40, it cannot be raised or lowered further. Therefore, the beaker base 30 can move up and down within the range of the length of the beaker base support bar 40 and does not fall off from the beaker base support bar 40.

電極支持棒５０は、導電性を有する素材、例えばステンレス鋼で形成された棒状部材である。電極支持棒５０は、壁部１１に対して垂直に、かつ、壁部１１を貫通して固定されている。すなわち、電極支持棒５０の一端は壁部１１の前面側に他端は背面側に配置されている。また、２本の電極支持棒５０、５０は、所定間隔離間して水平面内で並行に設けられている。   The electrode support bar 50 is a bar-shaped member formed of a conductive material, for example, stainless steel. The electrode support rod 50 is fixed perpendicularly to the wall portion 11 and through the wall portion 11. That is, one end of the electrode support bar 50 is disposed on the front side of the wall portion 11 and the other end is disposed on the back side. Further, the two electrode support bars 50, 50 are provided in parallel in a horizontal plane with a predetermined distance therebetween.

陽極ａは、白金の線材の一部を螺旋状に形成した螺旋状白金陽極であり、螺旋部とそれに続く直線状の導線部とからなる。陰極ｃは、穴あきの白金板を円筒状に形成した円筒状白金陽極であり、円筒部とそれに接続された導線部とからなる。   The anode a is a spiral platinum anode in which a part of a platinum wire is formed in a spiral shape, and includes a spiral portion followed by a linear conductor portion. The cathode c is a cylindrical platinum anode in which a perforated platinum plate is formed in a cylindrical shape, and includes a cylindrical portion and a conductive wire portion connected to the cylindrical portion.

電極支持棒５０の前面側端部には電極ａ、ｃが固定されている。より詳細には、電極支持棒５０の前面側の端面にはネジ孔が形成されており、そのネジ孔にワッシャ５１を介して蝶ボルト５２がねじ込まれている。電極支持棒５０の端面とワッシャ５１との間に電極ａ、ｃの導線部を挟み、蝶ボルト５２をねじ込むことで電極ａ、ｃが固定されている。   Electrodes a and c are fixed to the front side end of the electrode support bar 50. More specifically, a screw hole is formed in the front end surface of the electrode support bar 50, and a butterfly bolt 52 is screwed into the screw hole via a washer 51. The electrodes a and c are fixed by sandwiching the conductor portions of the electrodes a and c between the end face of the electrode support bar 50 and the washer 51 and screwing the butterfly bolt 52.

一方の電極支持棒５０に陽極ａが固定され、他方の電極支持棒５０に陰極ｃが固定される。そして、陰極ｃの円筒部の略中心に陽極ａの螺旋部が挿入される。換言すれば、２本の電極支持棒５０、５０の間隔は、陰極ｃの円筒部の略中心に陽極ａの螺旋部が挿入されるように設定されている。   The anode a is fixed to one electrode support bar 50, and the cathode c is fixed to the other electrode support bar 50. And the spiral part of the anode a is inserted in the approximate center of the cylindrical part of the cathode c. In other words, the distance between the two electrode support rods 50 and 50 is set so that the spiral portion of the anode a is inserted into the approximate center of the cylindrical portion of the cathode c.

電極支持棒５０の背面側端部には電線ｗの端部が固定されている。より詳細には、電極支持棒５０の背面側の端面にはネジ孔が形成されており、そのネジ孔にボルト５３がねじ込まれている。電線ｗの端部に設けられた丸形端子をボルト５３に通し、ボルト５３を電極支持棒５０の背面側端部にねじ込むことで電線ｗが固定されている。   The end portion of the electric wire w is fixed to the rear side end portion of the electrode support rod 50. More specifically, a screw hole is formed in the end surface on the back side of the electrode support rod 50, and a bolt 53 is screwed into the screw hole. The electric wire w is fixed by passing a round terminal provided at the end portion of the electric wire w through the bolt 53 and screwing the bolt 53 into the end portion on the back side of the electrode support bar 50.

このように、電線ｗが壁部１１の背面に配置されるので、不注意により作業員が電線ｗに触れることを防止でき、電線ｗが動いて電線固定用のボルト５３が緩むことを防止できる。   Thus, since the electric wire w is arrange | positioned on the back surface of the wall part 11, it can prevent that an operator touches the electric wire w carelessly, and can prevent the electric wire w moving and the bolt 53 for electric wire fixation loosening. .

電極支持棒５０は導電性を有する素材で形成されているため、電線ｗと電極ａ、ｃとは電極支持棒５０を介して導通している。また、２本の電極支持棒５０、５０のそれぞれに電線ｗが固定されており、これら２本の電線ｗは図示しない電源に接続されている。そのため、電線ｗを通じて電極ａ、ｃに電流を供給することができる。   Since the electrode support bar 50 is formed of a conductive material, the electric wire w and the electrodes a and c are electrically connected via the electrode support bar 50. Moreover, the electric wire w is being fixed to each of the two electrode support bars 50 and 50, and these two electric wires w are connected to the power supply which is not shown in figure. Therefore, current can be supplied to the electrodes a and c through the electric wire w.

ビーカ台支持棒４０および電極支持棒５０は、ビーカ台３０を上下動させることでビーカｂに電極ａ、ｃを挿入抜去できるように配置されている。具体的には、２本の電極支持棒５０、５０は、ビーカ台支持棒４０の上端部の近傍に横並びに設けられている。   The beaker base support bar 40 and the electrode support bar 50 are arranged so that the electrodes a and c can be inserted and removed from the beaker b by moving the beaker base 30 up and down. Specifically, the two electrode support bars 50, 50 are provided side by side in the vicinity of the upper end portion of the beaker base support bar 40.

つぎに、電解分析装置Ａを用いた電解分析方法の手順を説明する。
（１）まず、所定容量のビーカｂに所定量の測定対象溶液を採取する。図５に示すように、測定対象溶液が入ったビーカｂをビーカ台３０に載せる。この際、ビーカ台３０は、下降させ、電極支持棒５０とは反対側に旋回させておく。このように、ビーカ台３０を旋回させることで、ビーカｂを電極ａ、ｃから離れた位置に移動できるので、ビーカｂの周りに障害物がなく、ビーカｂの交換作業が行いやすい。 Next, the procedure of the electrolytic analysis method using the electrolytic analyzer A will be described.
(1) First, a predetermined amount of the solution to be measured is collected in a predetermined volume of the beaker b. As shown in FIG. 5, the beaker b containing the measurement target solution is placed on the beaker base 30. At this time, the beaker base 30 is lowered and turned to the opposite side to the electrode support bar 50. In this way, by rotating the beaker base 30, the beaker b can be moved to a position away from the electrodes a and c. Therefore, there is no obstacle around the beaker b, and the beaker b can be easily replaced.

（２）つぎに、各電極支持棒５０に電極ａ、ｃを固定する。なお、通常、電線ｗは電極支持棒５０に常に固定されており、取り付け取り外しの操作は必要ない。また、上記（１）と（２）の操作は順番を逆にしてもよい。 (2) Next, the electrodes a and c are fixed to each electrode support rod 50. Normally, the electric wire w is always fixed to the electrode support rod 50, and no attachment / detachment operation is required. The order of the operations (1) and (2) may be reversed.

（３）つぎに、ビーカ台３０を電極ａ、ｃ側に旋回させ（図５における矢印Ｉ）、電極ａ、ｃの下方にビーカｂを配置する。そして、ビーカ台３０を上昇させ（図５における矢印II）、ビーカｂ内の測定対象溶液に電極ａ、ｃを浸漬する。図３に示すように、ビーカｂと電極ａ、ｃの位置関係を整えた後、アーム３１に設けられた蝶ボルト３２を締めてビーカ台３０を固定する。 (3) Next, the beaker base 30 is turned toward the electrodes a and c (arrow I in FIG. 5), and the beaker b is disposed below the electrodes a and c. And the beaker stand 30 is raised (arrow II in FIG. 5), and the electrodes a and c are immersed in the solution to be measured in the beaker b. As shown in FIG. 3, after adjusting the positional relationship between the beaker b and the electrodes a and c, the butterfly bolt 32 provided on the arm 31 is tightened to fix the beaker base 30.

このように、ビーカ台３０とともにビーカｂを上下動させることでビーカｂに電極ａ、ｃを挿入抜去できる。ビーカ台３０には電線ｗなど、動作を制限する部材が接続されていないので、ビーカ台３０の移動や位置調整が容易である。そのため、電極ａ、ｃをビーカｂ内の適切な位置に配置することが容易である。   Thus, the electrodes a and c can be inserted and removed from the beaker b by moving the beaker b up and down together with the beaker base 30. Since the member which restrict | limits operation | movement, such as the electric wire w, is not connected to the beaker base 30, the movement and position adjustment of the beaker base 30 are easy. Therefore, it is easy to arrange the electrodes a and c at appropriate positions in the beaker b.

また、電線ｗが固定された電極支持棒５０は架台１０に固定されており、動かないため、従来の電解分析装置のように電線ｗの固定部分が回動することがない。そのため、電線固定用のボルト５３の緩みを抑制できる。ボルト５３の緩みを抑制できるので、電線ｗと電極支持棒５０との接触抵抗が増加することもなく、電極ａ、ｃ間に流れる電流が低下することもない。そのため、従来の電解分析装置のように電解に要する時間が長くなり、測定に支障がでることがない。また、接触抵抗が増加することにより、電流効率が低下することもないし、固定部分が発熱することもない。さらに、電線ｗが動くことがないので、可撓性の低い安価な電線を使用することができる。   Moreover, since the electrode support rod 50 to which the electric wire w is fixed is fixed to the gantry 10 and does not move, the fixed portion of the electric wire w does not rotate as in the conventional electrolytic analyzer. Therefore, loosening of the electric wire fixing bolt 53 can be suppressed. Since the looseness of the bolt 53 can be suppressed, the contact resistance between the electric wire w and the electrode support rod 50 does not increase, and the current flowing between the electrodes a and c does not decrease. Therefore, the time required for electrolysis becomes longer as in the conventional electrolytic analyzer, and measurement is not hindered. Further, since the contact resistance increases, the current efficiency does not decrease, and the fixed portion does not generate heat. Furthermore, since the electric wire w does not move, an inexpensive electric wire with low flexibility can be used.

（４）ビーカｂの開口部を時計皿で覆い、電極ａ、ｃ間に通電して測定対象溶液を電解する。電解により測定対象溶液に含まれる金属が陰極ｃに電着する。通電時間は、測定対象溶液に含まれる金属が実質的に全て電着するのに十分な時間とする。 (4) Cover the opening of the beaker b with a watch glass, and energize the electrodes a and c to electrolyze the solution to be measured. The metal contained in the solution to be measured is electrodeposited on the cathode c by electrolysis. The energization time is set to a time sufficient for substantially all the metals contained in the measurement target solution to be electrodeposited.

（５）電解の終了後、上記（１）〜（３）の手順を逆に行い電極ａ、ｃを取り外す。陰極ｃを洗浄、乾燥した後、重量を測定する。そして、電解前後の陰極ｃの重量増加分から電着した金属量を求め、金属量から測定対象溶液の金属濃度を求める。 (5) After the electrolysis is completed, the procedures (1) to (3) are reversed to remove the electrodes a and c. After the cathode c is washed and dried, the weight is measured. Then, the amount of electrodeposited metal is obtained from the weight increase of the cathode c before and after electrolysis, and the metal concentration of the solution to be measured is obtained from the amount of metal.

本実施形態の電解分析装置Ａは、複数の電解部２０を備えるので、それぞれの電解部２０を用いて複数の測定対象溶液を並行して電解できる。そのため、効率よく金属濃度の分析ができる。   Since the electrolysis analyzer A of the present embodiment includes a plurality of electrolysis units 20, it is possible to electrolyze a plurality of measurement target solutions in parallel using the electrolysis units 20. Therefore, the metal concentration can be analyzed efficiently.

（その他の実施形態）
電極ａ、ｃは、架台１０に対して着脱可能に固定されればよい。そのため、上記の電極支持棒５０に代えて、他の電極支持部に電極ａ、ｃを固定する形態としてもよい。 (Other embodiments)
The electrodes a and c may be detachably fixed to the gantry 10. Therefore, it is good also as a form which replaces with said electrode support rod 50 and fixes electrode a, c to another electrode support part.

Ａ 電解分析装置
１０ 架台
１１ 壁部
２０ 電解部
３０ ビーカ台
４０ ビーカ台支持棒
５０ 電極支持棒 A Electrolysis analyzer 10 Base 11 Wall part 20 Electrolysis part 30 Beaker base 40 Beaker base support bar 50 Electrode support bar

Claims (4)

ビーカ内の測定対象溶液に電極を浸漬し、電解により該電極に電着した金属量から該測定対象溶液の金属濃度を求めるための電解分析装置であって、
架台と、
前記架台に設けられた電解部と、を備え、
前記電解部は、
前記ビーカが載せられるビーカ台と、
前記架台に固定され、前記ビーカ台を上下動可能に支持するビーカ台支持棒と、
前記架台に固定され、前記電極および該電極に電流を供給する電線が固定される電極支持部と、を備え、
前記ビーカ台支持棒および前記電極支持部は、前記ビーカ台を上下動させることで前記ビーカに前記電極を挿入抜去できるように配置されており、
前記ビーカ台は、前記ビーカ台支持棒を軸として該ビーカ台支持棒の周りを旋回可能となっている
ことを特徴とする電解分析装置。 An electrolytic analysis device for immersing an electrode in a solution to be measured in a beaker and determining the metal concentration of the solution to be measured from the amount of metal electrodeposited on the electrode by electrolysis,
A frame,
An electrolysis unit provided on the gantry,
The electrolysis unit is
A beaker table on which the beaker is placed;
A beaker support rod fixed to the gantry and supporting the beaker table so as to be movable up and down;
An electrode support fixed to the gantry and to which the electrode and an electric wire for supplying current to the electrode are fixed;
The beaker base support rod and the electrode support part are arranged so that the electrode can be inserted into and removed from the beaker by moving the beaker base up and down .
The electrolytic analysis apparatus according to claim 1, wherein the beaker base is pivotable about the beaker base support bar about the beaker base support bar . ビーカ内の測定対象溶液に電極を浸漬し、電解により該電極に電着した金属量から該測定対象溶液の金属濃度を求めるための電解分析装置であって、
架台と、
前記架台に設けられた電解部と、を備え、
前記電解部は、
前記ビーカが載せられるビーカ台と、
前記架台に固定され、前記ビーカ台を上下動可能に支持するビーカ台支持棒と、
前記架台に固定され、前記電極および該電極に電流を供給する電線が固定される電極支持部と、を備え、
前記ビーカ台支持棒および前記電極支持部は、前記ビーカ台を上下動させることで前記ビーカに前記電極を挿入抜去できるように配置されており、
前記架台は、鉛直に設けられた壁部を有し、
前記ビーカ台支持棒は、前記壁部の前面に固定されており、
前記電極支持部は、棒状の電極支持棒であり、前記壁部を貫通して固定されており、
前記電極支持棒の前面側端部に前記電極が固定され、背面側端部に前記電線が固定されている
ことを特徴とする電解分析装置。 An electrolytic analysis device for immersing an electrode in a solution to be measured in a beaker and determining the metal concentration of the solution to be measured from the amount of metal electrodeposited on the electrode by electrolysis,
A frame,
An electrolysis unit provided on the gantry,
The electrolysis unit is
A beaker table on which the beaker is placed;
A beaker support rod fixed to the gantry and supporting the beaker table so as to be movable up and down;
An electrode support fixed to the gantry and to which the electrode and an electric wire for supplying current to the electrode are fixed;
The beaker base support rod and the electrode support part are arranged so that the electrode can be inserted into and removed from the beaker by moving the beaker base up and down.
The mount has a wall portion provided vertically,
The beaker support rod is fixed to the front surface of the wall,
The electrode support portion is a rod-shaped electrode support rod, and is fixed through the wall portion.
The electrode and the electrode on the front end of the support bar is fixed, the wire is electrolytic analyzer you characterized in that it is fixed to the rear end. 前記ビーカ台は、前記ビーカ台支持棒を軸として旋回可能となっているThe beaker base is pivotable about the beaker base support rod.
ことを特徴とする請求項２記載の電解分析装置。The electrolytic analyzer according to claim 2. 前記電解部を複数備える
ことを特徴とする請求項１、２または３記載の電解分析装置。 The electrolytic analysis apparatus according to claim 1, wherein a plurality of the electrolytic units are provided.
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