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《Acta Armamentarii》 2009-09
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Spectrophotometric Determination of Silicon in Environmental Water Sample with Silicomolybdate Blue

YU Hui,ZHAI Qing-zhou,YANG Hui (Research Center for Nanotechnology,Changchun University of Science and Technology,Changchun 130022,Jilin,China)  
Silicon(IV) reacts with ammonium molybdate to form silicomolybdate yellow at hydrochloric acid concentration of 0.050 mol·L-1.Silicomolybdate yellow is reduced by ascorbic acid and forms silicomolybdate blue at hydrochloric acid concentration of 1.48 mol·L-1.The maximum absorption of the complex exhibits at 346 nm and the molar absorptivity is ε346 nm=4.5×104 L·mol-1·cm-1.Beer's law is obeyed over the range of 0.1~2.8 μg·mL-1 of silicon(IV).The effect of thirty-six common co-existing substances on the determined results of silicon(IV) was observed.The method was successfully used in the determination of silicon in environmental water sample with satisfactory results.
【CateGory Index】: X832
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【Citations】
Chinese Journal Full-text Database 4 Hits
1 LIANG Song-cheng(North China Mineral and Geology Testing Center, CNNC,Tianjin 300181,China);Rapid determination of silicon in ferrosilicon[J];Metallurgical Analysis;2004-01
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【Co-citations】
Chinese Journal Full-text Database 2 Hits
1 MA Chong-xian~* and WU Cheng(Shanghai Research Institute of Materials,Shanghai 200437);Analysis of metallic materials[J];Chinese Journal of Analysis Laboratory;2006-12
2 SONG Zhao-wei,LIU Jin-qiang,SHAO Min[Key Laboratory of Advanced Textile Materials & Manufacturing Technology (Zhejiang Sci-Tech University) of Ministry of Education,Hangzhou 310018,China];Silico-molybdenum blue spectrophotometry for trace silicone determination[J];Dyeing & Finishing;2008-24
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