摘要
本文比较了在标准石墨管,热解涂层和全热解石墨管中钒的吸收信号形状。用全热解石墨管和EDTA铵盐作基体改进剂,直接测定水系沉积物中痕量钒。方法的特征量为61pg/0.0044A。
The atomization behavior of V(V) has been studied in standard graphite tube, pyrolytic coated and totally pyrolytic graphite tube. A method for direct determination of V(V)in drainage sediments by graphite furnace atomic absorption spectrometry with totally pyrolytic glaphite tube and ammonium salt of EDTA as a matrix modifier was described. There was no interference up to 0. 3mol/L of HCIO_4 with 0. 25% ammonium salt of EDTA in the determination of V. The characteristic mass of V is 61 pg/0. 0044A.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1990年第7期676-679,共4页
Chinese Journal of Analytical Chemistry
关键词
钒
全热解石墨管
AAS法
Vanadium
Totally pyrolytic graphite tube
Interference of perchloric acid
Matrix modifier
