Shrivastava A K
Int J Environ Anal Chem. 1986;27(1-2):1-9. doi: 10.1080/03067318608078387.
The proposed method incorporates preconcentration of vanadium in water samples by its coprecipitation on ferric hydroxide at pH 8.0-9.6 which is redissolved in sulphuric acid; this is followed by extraction with N-phenylbenzohydroxamic acid (PBHA). The precision and accuracy of the newly developed method was ascertained by analysing EPA (Environmental Protection Agency, U.S.A.) standard water samples.
所提出的方法包括通过在pH 8.0 - 9.6条件下将钒共沉淀在氢氧化铁上对水样中的钒进行预富集，然后将其重新溶解于硫酸中；接着用N - 苯基苯甲羟肟酸（PBHA）进行萃取。通过分析美国环境保护局（EPA）的标准水样来确定新开发方法的精密度和准确度。
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