藏红T萃取分光光度法测定岩石矿物中的微量汞

高等学校化学学报 ›› 1984, Vol. 5 ›› Issue (4): 485.

藏红T萃取分光光度法测定岩石矿物中的微量汞

刘长松, 李新民, 门英, 卢建秀

山西大学化学系

收稿日期:1983-05-16 出版日期:1984-10-24 发布日期:1984-10-24

Extraction-Spectrophotometric Determination of Trace Mercury in Ores by Using Safranine T

Liu Changsong, Li Xinmin, Men Ying, Lu Jianxiu

Department of Chemistry, Shanxi University, Taiyuan

Received:1983-05-16 Online:1984-10-24 Published:1984-10-24

摘要/Abstract

摘要： 藏红T[SafraninT(C. I. BasicRed 2)]属于醌亚胺类对氮蒽碱性染料,虽已用于萃取光度法和萃取萤光光度法,但尚未见用于汞的测定.作者在研究和应用碘绿^[1]、乙基紫^[2]、酚藏花红^[3]和碱性品红^[4]等碱性染料作为汞的新显色剂基础上,应用藏红T作显色剂,建立了萃取分光光度法测定微量汞的新方法,并将此法用于岩矿中微量汞的测定.

Abstract: Anew sensitive method for the determination of trace mercury is proposed. Mercury (Ⅱ) reacts with Safranine T (C. I. Basic Red 2; C. I. 50240) to form a red complex in H₂SO₄ medium in the presence of NaRr. The association complex is readily extracted by non-aqueous solvents, e.g. mixture of cyclohexane-butanone (3+2) or butylacetate. The absorbance of the extract is measured at 528nm (ε = 5.0×10⁴-5.4×10⁴1 mol^-1 cm^-1) vs. mixture of cyclohexanebutanone (3+2) or butylacetate. Beer's law is obeyed for 0—5, 0—20 μg Hg/10ml. This method may be used in the analysis of ores.

TrendMD:

刘长松, 李新民, 门英, 卢建秀. 藏红T萃取分光光度法测定岩石矿物中的微量汞. 高等学校化学学报, 1984, 5(4): 485.

Liu Changsong, Li Xinmin, Men Ying, Lu Jianxiu. Extraction-Spectrophotometric Determination of Trace Mercury in Ores by Using Safranine T. Chem. J. Chinese Universities, 1984, 5(4): 485.