Combined Seven Anion Standard II
(100 mL)...................... P/N 057590
Designed for routine anion determinations.
Contains fluoride
(20 mg/L); chloride (100 mg/L);
nitrite (100 mg/L); bromide
(100 mg/L); nitrate (100 mg/L);
phosphate (200 mg/L); sulfate
(100 mg/L).
我们自己也配单个的,发现差不多(保留时间,峰面积)。