Spectrophotometric determination of micro amounts of nitrite in water and soil |
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Authors: | Wu Q F Liu P F |
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Institution: | Shaanxi Monitoring Station of Environmental Protection, 25 Chang An Road (N.), Xian, People's Republic of China. |
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Abstract: | A spectrophotometric method for determination of micro amounts of nitrite in water and soil with p-aminoacetophenone and resorcinol is described. The interference of foreign ions can be eliminated by masking with complexing agents. Beer's law is obeyed up to 20 mug of NO(2)(-) in 60 ml of solution and the molar absorptivity at 435 nm is 5.27 x 10(4) l.mole(-1).cm(-1). The colour is stable for 10 hr. Results obtained by using the proposed method for water and soil samples agree well with those obtained by the Saltzman standard method. |
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