Method for determining 24 impurity elements in silver based on ICP-MS (Inductively Coupled Plasma Mass Spectrometry)

Method for determining 24 impurity elements in silver based on ICP-MS (Inductively Coupled Plasma Mass Spectrometry)

The invention discloses a method for determining 24 impurity elements in silver based on ICP-MS. The method comprises the following steps: firstly, decomposing a silver sample with nitric acid, in a 5% nitric acid medium, determining the contents of impurity elements such as magnesium, titanium, chr...

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Hauptverfasser: PAN MEIRONG, SONG XIANG, XIE YANG, YANG SHUJING, FANG CHUNJUAN, TIAN WEI, YANG HONGYU, SUN HAIRONG, ZHANG XIN
Format: Patent
Sprache:chi ; eng
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INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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creator PAN MEIRONG
SONG XIANG
XIE YANG
YANG SHUJING
FANG CHUNJUAN
TIAN WEI
YANG HONGYU
SUN HAIRONG
ZHANG XIN
description The invention discloses a method for determining 24 impurity elements in silver based on ICP-MS. The method comprises the following steps: firstly, decomposing a silver sample with nitric acid, in a 5% nitric acid medium, determining the contents of impurity elements such as magnesium, titanium, chromium, vanadium, manganese, copper, iron, cobalt, nickel, zinc, gallium, germanium, lead, tin, cadmium, strontium, zirconium, molybdenum, arsenic, antimony, barium, thallium, bismuth and tellurium in the silver by adopting an on-line internal standard element yttrium adding and matrix matching method and utilizing ICP-MS. According to the method, the detection limit is 0.003-0.483 [mu] g/L, the adding standard recovery rate of each element is 89.12%-119.68%, and the relative standard deviation is 1.20%-21.38%. The method disclosed by the invention has the characteristics of simple treatment flow of the sample silver, easiness in operation, wide impurity element determination range and relatively high determination
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The method comprises the following steps: firstly, decomposing a silver sample with nitric acid, in a 5% nitric acid medium, determining the contents of impurity elements such as magnesium, titanium, chromium, vanadium, manganese, copper, iron, cobalt, nickel, zinc, gallium, germanium, lead, tin, cadmium, strontium, zirconium, molybdenum, arsenic, antimony, barium, thallium, bismuth and tellurium in the silver by adopting an on-line internal standard element yttrium adding and matrix matching method and utilizing ICP-MS. According to the method, the detection limit is 0.003-0.483 [mu] g/L, the adding standard recovery rate of each element is 89.12%-119.68%, and the relative standard deviation is 1.20%-21.38%. 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subjects INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
title Method for determining 24 impurity elements in silver based on ICP-MS (Inductively Coupled Plasma Mass Spectrometry)
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