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污泥中铬的测定也和某些重金属的测定一样,在实践中具有重要的意义。Sto-veland 曾用非火焰快速原子吸收法加以测定;中川宏等先用 EDTA 处理污泥,并用 Cr~(+6)——DDTC 萃取后,再进行 Cr~(+6)的原子吸收测定;而奥野雅雄亦用这类方法在 Cr~(+3)存在下测定了污泥中的 Cr~(+6);VanLoon 虽然用直接原子子吸收法测定了污泥
Determination of chromium in sludge and heavy metals and some of the same determination, in practice has important significance. Sto-veland was measured by non-flame rapid atomic absorption spectrometry. Nakagawa et al first treated the sludge with EDTA and extracted it with Cr ~ (+6) - DDTC before the atomic absorption of Cr ~ (+6) And Okuno Yasuo also used this method in the presence of Cr ~ (+3) was measured in the sludge Cr ~ (+6); VanLoon Although the direct atomic absorption spectrometry sludge