Arsenic standard solution (10 ppm As)
Dissolve 0.330 gm of arsenic trioxide in 5 ml of 2M sodium hydroxide and dilute to 250 ml with water. Dilute 1 volume of this solution to 100 volumes with water immediately before use.
Dissolve 0.330 gm of arsenic trioxide in 5 ml of 2M sodium hydroxide and dilute to 250 ml with water. Dilute 1 volume of this solution to 100 volumes with water immediately before use.
Arsenic standard solution (1 ppm As)
Dilute 1 volume of arsenic standard solution(10 ppm As) to 10 volumes with water immediately before use.
Dilute 1 volume of arsenic standard solution(10 ppm As) to 10 volumes with water immediately before use.
Arsenic standard solution (0.1 ppm As)
Dilute 1 volume of arsenic standard solution (1 ppm As) to 10 volumes with water immediately before use.
Dilute 1 volume of arsenic standard solution (1 ppm As) to 10 volumes with water immediately before use.
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