JPH01257258A - Reagent for gold concentration and gold-concentration testing paper and gold concentration measuring method using said reagent - Google Patents
Reagent for gold concentration and gold-concentration testing paper and gold concentration measuring method using said reagentInfo
- Publication number
- JPH01257258A JPH01257258A JP8405688A JP8405688A JPH01257258A JP H01257258 A JPH01257258 A JP H01257258A JP 8405688 A JP8405688 A JP 8405688A JP 8405688 A JP8405688 A JP 8405688A JP H01257258 A JPH01257258 A JP H01257258A
- Authority
- JP
- Japan
- Prior art keywords
- gold
- concentration
- reagent
- product
- color
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000010931 gold Substances 0.000 title claims abstract description 53
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 229910052737 gold Inorganic materials 0.000 title claims abstract description 46
- 238000012360 testing method Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title claims description 15
- 239000003153 chemical reaction reagent Substances 0.000 title claims description 8
- VDCLSGXZVUDARN-UHFFFAOYSA-N molecular bromine;pyridine;hydrobromide Chemical compound Br.BrBr.C1=CC=NC=C1 VDCLSGXZVUDARN-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000007795 chemical reaction product Substances 0.000 claims abstract description 13
- DGOHFTDNMSZWDQ-UHFFFAOYSA-N N#C[Au]C#N Chemical compound N#C[Au]C#N DGOHFTDNMSZWDQ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000007864 aqueous solution Substances 0.000 abstract description 7
- 235000005979 Citrus limon Nutrition 0.000 abstract description 4
- FPBVWCNAASFGMO-UHFFFAOYSA-N [K].N#C[Au]C#N Chemical compound [K].N#C[Au]C#N FPBVWCNAASFGMO-UHFFFAOYSA-N 0.000 abstract description 4
- 238000004737 colorimetric analysis Methods 0.000 abstract description 4
- 239000000047 product Substances 0.000 abstract 4
- 244000248349 Citrus limon Species 0.000 abstract 2
- 239000003086 colorant Substances 0.000 abstract 2
- KPQDSKZQRXHKHY-UHFFFAOYSA-N gold potassium Chemical compound [K].[Au] KPQDSKZQRXHKHY-UHFFFAOYSA-N 0.000 abstract 1
- 238000002835 absorbance Methods 0.000 description 5
- 238000000691 measurement method Methods 0.000 description 4
- 244000175448 Citrus madurensis Species 0.000 description 3
- 235000017317 Fortunella Nutrition 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 244000131522 Citrus pyriformis Species 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 238000001479 atomic absorption spectroscopy Methods 0.000 description 1
- 239000013626 chemical specie Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000013256 coordination polymer Substances 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000001139 pH measurement Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- BBFCIBZLAVOLCF-UHFFFAOYSA-N pyridin-1-ium;bromide Chemical compound Br.C1=CC=NC=C1 BBFCIBZLAVOLCF-UHFFFAOYSA-N 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000012086 standard solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
この発明は金濃度試薬及びそれを用いた金濃度試験紙並
びに金濃度４（１１定方法に関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a gold concentration reagent, a gold concentration test paper using the same, and a method for determining gold concentration 4 (11).
〈従来の技術〉
従来、ジシアノ錯体の形態で水溶液中に存在する金の濃
度を測定する方法としては、重量法、ポーラログラフイ
ー法、原子吸光法、■ＣＰなどの測定方法があった。<Prior Art> Conventionally, methods for measuring the concentration of gold present in an aqueous solution in the form of a dicyano complex include a gravimetric method, a polarographic method, an atomic absorption method, and a CP method.
〈発明が解決しようとする課題〉
しかしながらこのような従来の金濃度測定方法にあって
は、測定結果を得るまでに時間が長くかかったり、或い
は高価な分析装置を必要とす・るものであった。<Problems to be solved by the invention> However, with such conventional gold concentration measurement methods, it takes a long time to obtain measurement results or requires expensive analytical equipment. Ta.
この発明は、このような従来の課題に着目して為された
ものであり、簡単で且つ比較的安価な装置により金の濃
度測定を行なわんとするものである。The present invention has been made in view of these conventional problems, and aims to measure the concentration of gold using a simple and relatively inexpensive device.
く課題を解決するための手段〉
発明者は上記の目的を達成するために長年にわたり鋭意
研究を重ねてきた結果、臭化ピリジニウム過臭化物（Ｐ
ｙｒｉｄｉｎｉｕｍ Ｂｒｏｍｉｄｅ Ｐｅｒｂｒｏｍ
ｉｄｅ）がジシアノ金錯体と反応し、その反応生成物が
金濃度に応じた色合いを呈することを知見した。従って
、この臭化ピリジニウム過臭化物とジシアノ金錯体との
反応生成物を比色分析することにより金濃度測定行なえ
るものである。Means for Solving the Problem> As a result of many years of intensive research in order to achieve the above object, the inventors discovered pyridinium bromide perbromide (Pyridinium bromide).
yridinium Bromide Perbrom
ide) reacts with a dicyano gold complex, and the reaction product exhibits a color depending on the gold concentration. Therefore, the gold concentration can be measured by colorimetrically analyzing the reaction product of this pyridinium bromide perbromide and the dicyano gold complex.
すなわち、上記知見に基づいて、ジシアノ金錯体と反応
する臭化ピリジニウム過臭化物である金濃度試薬（第１
発明）と、臭化ピリジニウム過臭化物を含浸させた金濃
度試験紙（第２発明）と、ジシアノ金柑体と臭化ピリジ
ニウム過臭化物との反応生成物を比色分析して金濃度を
測定する金濃度測定方法（第３発明）とを完成させたも
のである。That is, based on the above findings, the gold concentration reagent (the first
invention), gold concentration test paper impregnated with pyridinium bromide perbromide (second invention), and gold concentration test paper for measuring gold concentration by colorimetrically analyzing the reaction product of dicyano kumquat and pyridinium bromide perbromide. This is a completed method for measuring concentration (third invention).
尚、以上及び以下において「比色分析」とは、試料物質
の透過光或いは反射光により色の濃さを測定し、標準液
と比較することによって着色化学種の濃度を分析する方
法であり、吸光光度計や分光光度計等を用いた光吸収分
析をも含む広義のものである。In addition, in the above and below, "colorimetric analysis" is a method of measuring the color density using transmitted light or reflected light of a sample substance, and analyzing the concentration of colored chemical species by comparing it with a standard solution. This is a broad term that includes light absorption analysis using an absorption photometer, spectrophotometer, etc.
く作 用〉
例えば、金メツキ液中においては、金はジシアノ金柑体
の一態様であるジシアノ金カリウム（ＫＡｕ （ＣＮ）
ｚ ）の形態で存在している。そして、ジシアノ金カ
リウム（Ａ）に臭化ピリジニウム過臭化物（Ｂ）を反応
させると、以下の如く反応生成物（Ｃ）（Ｄ）を生じる
。For example, in the gold plating solution, gold is dissolved in dicyanogold potassium (KAu (CN)), which is an aspect of dicyanogrum.
z). When dicyanogold potassium (A) is reacted with pyridinium bromide perbromide (B), reaction products (C) and (D) are produced as shown below.
ジシアノ金カリウム（Ａ）と反応生成物（Ｄ）とは、無
色透明なので、上記反応に係る色の変化は、臭化ピリジ
ニウム過臭化物（Ｂ）→反応生成物（Ｃ）だけで行われ
る。臭化ピリジニウム過臭化物（Ｂ）はオレンジ色をし
ており、反応生成物（Ｃ）は存在する金の濃度に応じた
淡いレモン色を呈する。従って、この 反応生成物（Ｃ
）のレモン色の程度を比色分析することにより金濃度を
測定することができる。Since the dicyanogold potassium (A) and the reaction product (D) are colorless and transparent, the color change related to the above reaction occurs only from the pyridinium bromide perbromide (B) to the reaction product (C). Pyridinium bromide perbromide (B) has an orange color, and the reaction product (C) has a pale lemon color depending on the concentration of gold present. Therefore, this reaction product (C
) The gold concentration can be measured by colorimetrically analyzing the degree of lemon color.
この反応を利用した金濃度測定の具体的方法としては、
まず最初に金濃度試薬としての臭化ピリジニウム過臭化
物を紙に含浸させた金濃度試験紙を用いる方法がある。A specific method for measuring gold concentration using this reaction is as follows:
First, there is a method using gold concentration test paper, which is a paper impregnated with pyridinium bromide perbromide as a gold concentration reagent.
この測定方法では、リドマス試験紙によるｐＨ測定のよ
うに、測定対象であるジシアノ金錯体含有の水溶液に前
記金濃度試験紙をつけ、そしてその金濃度試験紙の変化
した色を、別途金濃度別に用意したサンプル色と目視に
より対比して金濃度を知る方法がある。In this measurement method, the gold concentration test paper is applied to an aqueous solution containing the dicyano gold complex to be measured, and the changed color of the gold concentration test paper is measured separately for each gold concentration, similar to pH measurement using Lidomus test paper. There is a method of determining the gold concentration by visually comparing the color of a prepared sample.
また、別の測定方法としては、ジシアノ金錯体含有の水
溶液に臭化ピリジニウム過臭化物を添加して反応を起こ
させ、その反応生成物を含んだ水溶液を吸光度計や分光
光度計などにかけて、吸光度等から色の度合いを計り、
金濃度を測定する方法がある。Another measurement method is to add pyridinium bromide perbromide to an aqueous solution containing a dicyanogold complex to cause a reaction, and then apply the aqueous solution containing the reaction product to an absorbance meter or spectrophotometer to determine the absorbance, etc. Measure the degree of color from
There are ways to measure gold concentration.
尚、この発明に係る金濃度測定方法では、Ａｕ・しか測
定できないので、測定対象である水溶液中に、金として
Ａｕ” とＡｕ” （例えばテトラシアノ金カリウム
）の両形態を含んでいる場合などは、Ａｕ ’ ＋Ａｕ
”の濃度を予め原子吸光法等の従来方法で求めておき、
その全体濃度から本発明の方法にて分析したＡｕ″濃度
を引けばＡ ｕ ３”濃度を知ることができる。Note that the method for measuring gold concentration according to the present invention can only measure Au. Therefore, in cases where the aqueous solution to be measured contains both forms of gold, Au" and Au" (for example, tetracyanogold potassium), , Au' + Au
” concentration is determined in advance by conventional methods such as atomic absorption spectrometry,
By subtracting the Au'' concentration analyzed by the method of the present invention from the total concentration, the Au 3'' concentration can be determined.
く実 施 例〉
以下、この発明に係る金濃度試薬としての臭化ピリジニ
ウム過臭化物が、金の濃度に応じて実際に色の変化を起
こすことを確認するための実験を行った。EXAMPLE Hereinafter, an experiment was conducted to confirm that pyridinium bromide perbromide as a gold concentration reagent according to the present invention actually changes color depending on the gold concentration.
実験は、ジシアノ金柑体の形態をした金の含有量が、６
３ｐｐｍ、４７ｐｐｍ、３２ｐｐｍ、１５ｐｐｍ、Ｏｐ
ｐｍである各サンプル水溶液１〜５に、０．４ｎｍｏｌ
／ｊ２の臭化ピリジニウム過臭化物を添加し、反応させ
た。そして、各サンプル１〜５を分光光度計にかけ、そ
の吸光度を測定した。結果は、第１図に示す如く、波長
３２３．６７ｎｍをピークとして、金濃度に確実に対応
した吸光度変化を示した。The experiment showed that the content of gold in the form of dicyano kumquats was 6.
3ppm, 47ppm, 32ppm, 15ppm, Op
0.4 nmol to each sample aqueous solution 1 to 5 which is pm
/j2 of pyridinium bromide perbromide was added and reacted. Then, each sample 1 to 5 was subjected to a spectrophotometer and its absorbance was measured. As shown in FIG. 1, the results showed a change in absorbance with a peak at a wavelength of 323.67 nm that reliably corresponded to the gold concentration.
く効 果〉
この発明に係る金濃度試薬及びそれを用いた金濃度試験
紙並びに金濃度測定方法は、以上説明してきた如き内容
のものなので、ジシアノ金柑体の形態をした金の濃度測
定を簡単且つ確実に測定することができる。また、反応
生成物の比色分析を行うだけなので、特別な分析・測定
装置を必要とせず、従来既知の分光光度計や吸光光度計
などの従来装置により金濃度の測定を行うことができる
。Effects> The gold concentration reagent, the gold concentration test paper using the same, and the gold concentration measurement method according to the present invention have the contents as described above, and therefore can easily measure the concentration of gold in the form of dicyano kumquats. Moreover, it can be measured reliably. Further, since only colorimetric analysis of the reaction product is performed, there is no need for special analysis/measuring equipment, and the gold concentration can be measured using conventional equipment such as a conventionally known spectrophotometer or spectrophotometer.
第１図はこの発明の実施例を示す分光光度計の波長と吸
光度との関係を表すグラフである。FIG. 1 is a graph showing the relationship between wavelength and absorbance of a spectrophotometer showing an embodiment of the present invention.
Claims (3)
化物である金濃度試薬。(1) A gold concentration reagent that is a pyridinium bromide perbromide that reacts with the dicyano gold complex.
験紙。(2) Gold concentration test paper impregnated with pyridinium bromide perbromide.
反応生成物を比色分析して金濃度を測定する金濃度測定
方法。(3) A gold concentration measuring method in which the gold concentration is measured by colorimetrically analyzing the reaction product of the dicyano gold complex and pyridinium bromide perbromide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8405688A JPH01257258A (en) | 1988-04-07 | 1988-04-07 | Reagent for gold concentration and gold-concentration testing paper and gold concentration measuring method using said reagent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8405688A JPH01257258A (en) | 1988-04-07 | 1988-04-07 | Reagent for gold concentration and gold-concentration testing paper and gold concentration measuring method using said reagent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01257258A true JPH01257258A (en) | 1989-10-13 |
Family
ID=13819839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8405688A Pending JPH01257258A (en) | 1988-04-07 | 1988-04-07 | Reagent for gold concentration and gold-concentration testing paper and gold concentration measuring method using said reagent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01257258A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010116167A1 (en) * | 2009-04-06 | 2010-10-14 | Petroliam Nasional Berhad (Petronas) | Ionic liquid solvents of perhalide type for metals and metal compounds |
-
1988
- 1988-04-07 JP JP8405688A patent/JPH01257258A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010116167A1 (en) * | 2009-04-06 | 2010-10-14 | Petroliam Nasional Berhad (Petronas) | Ionic liquid solvents of perhalide type for metals and metal compounds |
| CN102597277A (en) * | 2009-04-06 | 2012-07-18 | 国家石油公司 | Ionic liquid solvents of perhalide type for metals and metal compounds |
| CN104611546A (en) * | 2009-04-06 | 2015-05-13 | 国家石油公司 | Ionic liquid solvents of perhalide type for metals and metal compounds |
| US10266913B2 (en) | 2009-04-06 | 2019-04-23 | Petroliam Nasional Berhad (Petronas) | Ionic liquid solvents of perhalide type for metals and metal compounds |
| EA036111B1 (en) * | 2009-04-06 | 2020-09-29 | Петролиам Насьональ Берхад (Петронас) | Ionic liquids of perhalide type as solvents for metals and metal compounds |
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