贵金属
貴金屬
귀금속
PRECIOUS METALS
2015年
2期
66-69
,共4页
分析化学%高频燃烧-红外吸收%银及银合金%碳%硫
分析化學%高頻燃燒-紅外吸收%銀及銀閤金%碳%硫
분석화학%고빈연소-홍외흡수%은급은합금%탄%류
analytical chemistry%high frequency combustion-infrared absorption spectrometry%silver and silver alloy%carbon%sulfur
采用氯酸钾作助熔剂，经过高频燃烧后，用红外碳硫仪测定纯银及银基合金中的微量碳、硫，测定范围碳：0.005%~0.12%，硫：0.005%~0.099%。方法准确度高，相对标准偏差、加标回收率分别为碳：3.3%~10.9%、91%~120%；硫：2.8%~10%、91%~120%。
採用氯痠鉀作助鎔劑，經過高頻燃燒後，用紅外碳硫儀測定純銀及銀基閤金中的微量碳、硫，測定範圍碳：0.005%~0.12%，硫：0.005%~0.099%。方法準確度高，相對標準偏差、加標迴收率分彆為碳：3.3%~10.9%、91%~120%；硫：2.8%~10%、91%~120%。
채용록산갑작조용제，경과고빈연소후，용홍외탄류의측정순은급은기합금중적미량탄、류，측정범위탄：0.005%~0.12%，류：0.005%~0.099%。방법준학도고，상대표준편차、가표회수솔분별위탄：3.3%~10.9%、91%~120%；류：2.8%~10%、91%~120%。
The content of carbon and sulfur in pure silver and silver alloy was analyzed by using infrared absorption, and the related analytical conditions were established. Under the given analytical conditions, the method has advantages of being accurate and time-saving. Satisfactory analytical results can be obtained for the samples containing carbon in the range of 0.005%~0.12% and sulfur in the range of 0.005%~0.099%. The relative standard deviation, standard addition recovery rate is 3.3%~10.9%, 91%~ 120% for carbon, and 2.8%~10%, 91%~120% for sulfur, respectively.
