METHOD OF PREPARING SILICATE AND CARBONATE SAMPLES OF ROCKS FOR SPECTROMETRIC ANALYSIS,申请号RU20070132040-传众专利搜索

METHOD OF PREPARING SILICATE AND CARBONATE SAMPLES OF ROCKS FOR SPECTROMETRIC ANALYSIS

申请公布号：RU2364851(C2)

申请号：RU20070132040

申请日期：2007.08.23

申请公布日期：2009.08.20

申请人：

AKTSIONERNAJA KOMPANIJA "ALROSA" (ZAKRYTOE AKTSIONERNOE OBSHCHESTVO)

发明人：LELJUKH IRINA GRIGOR'EVNA;JAKUSHKOVA OL'GA LEONIDOVNA

分类号：G01N1/28

主分类号：G01N1/28

摘要：FIELD: chemistry. ^ SUBSTANCE: invention relates to method of preparing samples for investigation by determination of their chemical properties in liquid state, for instance, applying spectrometry with inductively-connected plasma. Method of preparing silicate and carbonate samples of rock for spectrometric analysis includes autoclave decomposition of samples in mixture of concentrated acids in microwave at temperature and pressure and samples cooling. Then introduction of internal standard and bringing to standard volume are performed. Complete decomposition of samples is realised in 2 stages. At first stage mixture of hydrofluoric, hydrochloric and nitric acids in ratio 1:3:1-1:4:1 is used during 45-50 minutes, and samples cooling is realised with closed autoclave to temperature 80-40C. At second stage of decomposition mixture of concentrated hydrochloric, nitric and diluted boric acids in ratio 1:1:10-1:1:12 is used during 10-15 minutes. ^ EFFECT: increasing efficiency of rock samples preparing with reduction of work laboriousness and increase of final sample purity. ^ 6 cl, 2 tbl, 1 ex