1) phenol disulfonic acid spectrophotometry
酚二磺酸分光光度法
1.
Two simple and quick methods of the determination of nitrate nitrogen in water were discussed,the result showed that nitrate radical potentio metric analysis determinates nitrate nitrogen in water,it had more higher accuracy,precision and anti-interference than phenol disulfonic acid spectrophotometry.
结果表明,用离子选择电极法测定水中硝酸盐氮,准确度、精密度、抗干扰性均高于酚二磺酸分光光度法。
2) spectrophotometric method with phenol disulfonic acid
酚二磺酸光度法
1.
The comparison analysis of nitrate nitrogen determination is conducted with the same standard solution and natural water samples by two methods of spectrophotometric method with phenol disulfonic acid and ultraviolet spectrophotometer.
采用同一标准液和天然水样用酚二磺酸光度法和紫外分光光度法测定硝酸盐氮,进行比对分析,同时调查云南省内用此两种方法密码样考核的情况。
2.
By the way of spectrophotometric method with phenol disulfonic acid monitoring nitrate nitrogen in water, the concentration of standard solution will reduce by the reason of error brought by the processing of drawing standard curve.
用酚二磺酸光度法测定水中硝酸盐氮,由于标准曲线制作过程容易引入误差致使标准液浓度降低,这样制作的标准曲线的斜率偏低,导致测定结果偏高,如果改用绘制工作曲线可克服这方面的误差。
4) Phenol-sulfuric acid spectrophotometric method
苯酚-硫酸分光光度法
1.
Methods The tea polysaccharide was extracted from Pu-erh Tea by ultrasonic extraction; Phenol-sulfuric acid spectrophotometric method was adopted,and the Detection wavelength is 487 nm.
方法采用超声法提取茶多糖;苯酚-硫酸分光光度法487nm下检测茶多糖的含量。
5) sulfosalicylia acid spectrophotometry
磺基水杨酸分光光度法
1.
The determination of iron by sulfosalicylia acid spectrophotometry or 1,10-phenanthroline spectrophotometry or EDTA coordinate titration is analyzed and discussed.
通过分析探讨磺基水杨酸分光光度法、1,10-菲罗啉分光光度法、EDTA配位滴定法测定铁离子含量的测定范围及方法特点,并结合发电厂各种水、汽的运行指标及实际水质情况,得出了各种水、汽适用的分析方法。
6) disulfonic acid phenol
酚二磺酸法
1.
The determining results were compared with that of national standard test (disulfonic acid phenol method).
用麝香草酚法测定水中硝酸盐氮 ,并与标准方法酚二磺酸法进行对照 ,所测结果经统计学处理 ,两种方法无显著性差异 ,精密度、准确度等各项指标符合分析标准。
补充资料：比色分析法(见紫外—可见分光光度法)
比色分析法(见紫外—可见分光光度法)
比色分析法见萦外一可见分光光度法。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条