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本文利用钒(Ⅴ)-亚铁氰化钾-鲁米诺化学发光体系建立了痕量钒的化学发光测定法。方法检出限是2×10~(-10)g/mL钒,线性范围是4×10~(-10)～1×10~(-7)g/mL钒,测定的相对标准偏差小于2%,考察了26种常见离子的干扰情况。方法已用于水样中痕量钒的测定。
In this paper, a chemiluminescence method for the determination of trace vanadium has been established by using vanadium (Ⅴ) -potassium ferrocyanide-luminol chemiluminescence system. The detection limit was 2 × 10 -10 g / mL vanadium and the linear range was 4 × 10 -10 -1 × 10 -7 g / mL vanadium. The relative standard deviation was less than 2 %, Investigated the interference of 26 kinds of common ions. The method has been applied to the determination of trace vanadium in water samples.