分析试验室
分析試驗室
분석시험실
ANALYTICAL LABORATORY
2001年
2期
14-16
,共3页
流动注射氢化物发生%原子吸收光谱法%镍基合金%硒%锡
流動註射氫化物髮生%原子吸收光譜法%鎳基閤金%硒%錫
류동주사경화물발생%원자흡수광보법%얼기합금%서%석
建立了流动注射氢化物发生-原子吸收光谱法测定高温镍基合金中痕量硒和锡的方法。样品用HNO3和HF经微波消解后，制成以EDTA作掩蔽剂的碱性溶液(pH12～13)，用标准加入法测定。方法测定硒和锡的检出限分别为1.0μg.g-1和1.8μg.g-1，RSD分别为3%～8%和3%～7%。
建立瞭流動註射氫化物髮生-原子吸收光譜法測定高溫鎳基閤金中痕量硒和錫的方法。樣品用HNO3和HF經微波消解後，製成以EDTA作掩蔽劑的堿性溶液(pH12～13)，用標準加入法測定。方法測定硒和錫的檢齣限分彆為1.0μg.g-1和1.8μg.g-1，RSD分彆為3%～8%和3%～7%。
건립료류동주사경화물발생-원자흡수광보법측정고온얼기합금중흔량서화석적방법。양품용HNO3화HF경미파소해후，제성이EDTA작엄폐제적감성용액(pH12～13)，용표준가입법측정。방법측정서화석적검출한분별위1.0μg.g-1화1.8μg.g-1，RSD분별위3%～8%화3%～7%。
Determination of trace Se and Sn in high-temperature nickelalloys by flow injection hydride generation atomic absorption spectrometry was studied. The sample was dissolved by microwave digestion in HNO3 and HF. After addition of EDTA as the masking agent and adjustment of pH to 12～13, Se and Sn were determined by standard addition method. Some reference materials were analysed and satisfactory results were obtained. The detection limits of the method for Se and Sn are 1.0 μg.g-1 and 1.8 μg.g-1, respectively, the RSD of determination are 3%～8% for Se and 3%～7% for Sn.
