在铬化物中,三价铬对人体危险不大,六价铬毒性较强,若接触皮肤,能使皮肤溃疡,已确认为致癌物。在电镀、制革、纺织、造纸、染料等工业废水中,都含有铬的化合物,水体中可能受到铬废水的污染,因此,准确地测定铬,对防止铬污染,保障人体健康是有意义的。 Chromium, trivalent chromium on the human body is not dangerous, hexavalent chromium toxicity is strong, if the contact with the skin, make the skin ulcers, has been identified as carcinogens. Chromium compounds are contained in industrial waste water such as electroplating, leather making, textile, paper making, dye, etc., and may be contaminated by chromium wastewater. Therefore, accurate determination of chromium is significant to prevent chromium pollution and ensure human health .