[Determination of zinc in mineral by FAAS after phase separation and extraction].
Non-ion surface active agent can be separated from its solution of water by heating to its cloud point. A new method for the determination of zinc in mineral samples by flame atomic absorption spectrophotometer after phase separation and extraction making use of its cloud point was studied in this paper. The conditions of phase separation and extraction such as using Triton X-100 as phase separation agent, and octanol to drop the cloud point, and the influence of acidity and the number of times for oscillating were discussed. The detection limit was 0.005 microg x mL(-1). This method has been applied to the determination of zinc in ores with satisfactory results.
Yang
Xiang
X
College of Materials Science and Chemical Engineering, China University of Geosciences, Wuhan, China.
Han
Hong-yin
HY
Chen
Wen-wu
WW
Zhang
Xin-hua
XH
Tang
Zhi-yong
ZY
Jin
Ze-xiang
ZX
D044367:Phase Transition; D052616:Solid Phase Extraction / Q000379:methods*; D013501:Surface-Active Agents / Q000032:analysis; D014867:Water / Q000737:chemistry; D015032:Zinc / Q000032:analysis*
D013501:Surface-Active Agents; D014867:Water; D015032:Zinc