Water quality. Physical, chemical and biochemical methods-Spectrometric method for the determination of nitrate using sulphosalicylic acid
水质 物理、化学和生化方法 用磺基水杨酸测定硝酸盐的光谱法
发布日期:
1989-09-29
适用于含有约0.01 mg/l至0.2 mg/l硝酸盐氮的原水和饮用水样品,试验部分为25 ml。
Applicable to raw and potable water samples containing nitrate nitrogen from about 0.01 mg/l to 0.2 mg/l using a test portion of 25 ml.