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  • Công bố khoa học và công nghệ Việt Nam

31.23

Hoá học

Xác định các anion lớn trong nước bề mặt bằng cách di mao quản điện tự động kết hợp với đầu dò không tiếp xúc kép

Determination of major anions in surface water by portable automated capillary electrophoresis with coupled capacitively contactless conductivity detector

Hóa học

2014

5

654-658

0866-7144

In this study, an analytical procedure for simultaneous analysis of major anions Cl-, NO3-, SO4-, NO2- and H2PO4- in surface water and groundwater samples using portable capillary electrophoresis instrument has been developed and evaluated. The solution of histidine 12 mM adjusted to pH 4 with was selected as the background electrolyte buffer. A wide linear range with the linear correlation coefficient for the target anions (R2) more than 0.995 was obtained. The RSDs for peak areas and migration times were less than 10.1 percent and less than 2.1 percent respectively. Twenty surface water samples collected from different lakes in Hanoi city were analyzed with the developed method and a comparison was made with ion chromatography where the bias is or

TTKHCNQG, CVv 14