METHOD FOR DETECTING SULFIDE CONTENT IN METAL ION SOLUTION

• Main Authors: LIN WEN-LUNG, SU HSIU-LI, LI YUEH-HSING, KO KANKI, CHU HAN-WEN, LU CHIEN WEI, CHEN CHONG-YOU, TSAI TING-YU
• Format: Patent
• Language: English; Japanese
• Published: 02.08.2021
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

To provide a technique capable of reducing cost and more quickly confirming whether or not a sulfide content exceeds the reference.SOLUTION: A method for detecting the sulfide content in a metal ion solution includes the steps of: preparing a metal ion solution, a sulfur-containing analyte and a reducing agent; mixing the metal ion solution and the sulfur-containing analyte to form a mixed solution; obtaining a detection result by adding the reducing agent to the mixed solution; and confirming whether or not the sulfide content of the sulfur-containing analyte exceeds a threshold by observing the detection result. When the sulfide content of the sulfur-containing analyte is smaller than the threshold, the detection result has a precipitate.SELECTED DRAWING: Figure 1 【課題】コストを低減すると共に、硫化物含有量が基準を超過しているか否かをより迅速に確認できる技術を提供する。【解決手段】金属イオン溶液、含硫黄分析物、および還元剤を準備する工程と、金属イオン溶液と含硫黄分析物とを混合して混合溶液を作る工程と、還元剤を混合溶液に加えて検出結果を得る工程と、検出結果を観察して含硫黄分析物の硫化物含有量がしきい値を超えているか否かを確認する工程と、を含み、含硫黄分析物の硫化物含有量がしきい値よりも小さいとき、その検出結果は沈殿を有する。【選択図】図１