METHOD OF DETERMINING NOBLE METALS Russian patent published in 2012 - IPC G01N1/28 G01N33/20 C22B11/02 

Abstract RU 2451280 C2

FIELD: chemistry.

SUBSTANCE: method of determining noble metals involves drying a sample with grain size 1 mm to constant weight at temperature 105-110°C and using the dried sample for second and subsequent one-off determination of noble metals. An undried sample is used during the first one-off determination, wherein sample material is mixed with a charge mixture, the obtained mixture is molten and the amount of noble metals in the melt is determined. The sample is dried during the first determination and the weight ratio of moisture in the sample is determined. Content of noble metals in the sample is determined using the formula: where Cme is content of noble metals in the sample, g/t, Mme is mass of the noble metal detected in the melt, mg, m1 is the mass of the sample material used in the first determination, g, W is the weight ratio of moisture in the sample.

EFFECT: invention increases rapidness of determining noble metals and labour efficiency.

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RU 2 451 280 C2

Authors

Shvetsov Vladimir Alekseevich

Adel'Shina Natal'Ja Vladimirovna

Belavina Ol'Ga Aleksandrovna

Shun'Kin Dmitrij Vladimirovich

Dates

2012-05-20Published

2010-06-16Filed