求翻译：摘要：在酸性溶液中，六价铬离子与二苯碳酰二肼反应，生成紫红色化合物，其最大吸收波长为540nm，吸光度与浓度的关系符合比耳定律。对水样不进行氧化，可测六价铬。此法简单、快速、准确，用于污水中铬的测定，结果满意。是什么意思？

Abstract: In acidic solution, hexavalent chromium ions and diphenylcarbazide diphenylcarbazide reaction to generate the purple compound, the maximum absorption wavelength of 540nm, the relationship between absorbance and concentration law is obeyed. Oxidation, water samples can be measured hexavalen

Summary: in an acid solution, 6 hexavalent chromium ion and benzoyl peroxide 2 2 direct-response, hydrazine compounds generated aubergine and its maximum absorption wavelength of 540 nm, and the photometry and concentration than the relationship between your ears with Moore's Law. As for water, not

Abstract: In the acid solution, six price chromium ion and the benzoin carbonyl two jing responses, the production purple red compound, its biggest absorption wave length is 540nm, the extinction and the density relations conforms to the beer law.Does not carry on the oxidation to the water sample,

Summary: in an acidic solution, hexavalent chromium ions and compounds of carbon acyl hydrazine the second reaction, purple red compound, its maximum absorption wavelength 540nm, relationship between absorbance and concentration in accordance with law of Beer. No oxidation water samples, measuring h

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