JPS5786755A - Elimination of coloring obstruction in colorimetric analysis - Google Patents

Elimination of coloring obstruction in colorimetric analysis

Info

Publication number
JPS5786755A
JPS5786755A JP16413780A JP16413780A JPS5786755A JP S5786755 A JPS5786755 A JP S5786755A JP 16413780 A JP16413780 A JP 16413780A JP 16413780 A JP16413780 A JP 16413780A JP S5786755 A JPS5786755 A JP S5786755A
Authority
JP
Japan
Prior art keywords
solution
coloring
lead
obstruction
quadrivalent
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
Application number
JP16413780A
Other languages
Japanese (ja)
Inventor
Kinya Fujimoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Sanyo Denki Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Sanyo Denki Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd, Sanyo Denki Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP16413780A priority Critical patent/JPS5786755A/en
Publication of JPS5786755A publication Critical patent/JPS5786755A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
    • G01N31/22—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Biophysics (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)

Abstract

PURPOSE:To eliminate the obstruction of coloring and measure an amimed element in a colorimetric analysis by adding tin to a coloring solution containing quadrivalent lead ion to effect decoloring and reduction of the coloring solution. CONSTITUTION:A piece of high purity tin is added to a coloring solution made of a lead alloy that has been beforehand decomposed with a mineral acid and an oxidant, and the solution is heated to reduce the quadrivalent lead to divalent lead and to change the yellow color of the solution into colorless solution. After this, a color developing reagent is used to color the solution, and the solution is analysed colorimetrically without the obstruction of analysis by coloring of the quadrivalent lead. By this method impurities such as iron in lead alloy are colorimetrically analysed simply and accurately without unneeded coloring in the solution.
JP16413780A 1980-11-20 1980-11-20 Elimination of coloring obstruction in colorimetric analysis Pending JPS5786755A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16413780A JPS5786755A (en) 1980-11-20 1980-11-20 Elimination of coloring obstruction in colorimetric analysis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16413780A JPS5786755A (en) 1980-11-20 1980-11-20 Elimination of coloring obstruction in colorimetric analysis

Publications (1)

Publication Number Publication Date
JPS5786755A true JPS5786755A (en) 1982-05-29

Family

ID=15787444

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16413780A Pending JPS5786755A (en) 1980-11-20 1980-11-20 Elimination of coloring obstruction in colorimetric analysis

Country Status (1)

Country Link
JP (1) JPS5786755A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5294554A (en) * 1991-03-01 1994-03-15 C. Uyemura & Co., Ltd. Analysis of tin, lead or tin-lead alloy plating solution

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5294554A (en) * 1991-03-01 1994-03-15 C. Uyemura & Co., Ltd. Analysis of tin, lead or tin-lead alloy plating solution

Similar Documents

Publication Publication Date Title
ES485763A1 (en) Method and composition for direct determination of iron in blood serum
JPS5786755A (en) Elimination of coloring obstruction in colorimetric analysis
JPS5399657A (en) Method of oxidizing waste water
JPS5633545A (en) Method of quantitatively analyzing acid and total iron ion
JPS5729946A (en) Method for quantitative analysis of acid, total iron ion
DE3161318D1 (en) Process and reagent for determining beta-lactamases
Miller et al. Spectrophotometric Determination of Technetium (VII) with Thioglycolic Acid
ES8306696A1 (en) Sorbic acid process.
JPS541089A (en) Standard specimen for combustion analysis
Sangal p-Nitrobenzene Azochromotropic Acid (Chromotrope 2B) as a Colorimetric Reagent for Thorium
JPS56164796A (en) Measurement of activity of gamma-glutamyltranspeptidase
Motojima Spectrophotometric Determination of Micro Quantities of Titanium with 8-Hydroxyquinaldine
JPS56129856A (en) Measurement of anion
JPS5217074A (en) Measuring method of gas concentration by non-dispersion type infraed r ay analysis
Denney et al. A comparison of two procedures for the determination of organobromine by the Schöniger oxygen-flask method
JamesáChalk The determination of small amounts of copper in the presence of iron
JPS53149388A (en) Ph measuring method of chemical copper plating solution
JPS5614157A (en) Fluorescent substrate and measuring method using it
Ginther Colorimetric semimicrodetermination of isopropyl alcohol
Ohashi et al. The Color Reactions of Lower Oxoacids of Phosphorus with Molybdate and their Application to Colorimetric Determinations of\overset4P–\overset3P–\overset4P–and (–\overset3P–) 6–Acid
JPS53149389A (en) Measurement method of copper ions and chelating agent concentration in chemical copper plating solution
JPS57102197A (en) Stabilizing method of oxidizable aniline color reagent
JPS51143393A (en) Analytical method for liquid
Kobayashi Spectrophotometric Determination of Cyclohexanone Oxime in a Sulfuric Acid Solution of ε-Caprolactam
JPS5497489A (en) Color forming method of iron ( ) ions