Product Dose

Procedure:

. 20 drops of sample was taken in a beaker.

. Adding 15 drops of Ammonia-Sodium sulphite solution.

. Adding 2 drops of Dithizone solution.

. Adding 20 drops of chloroform to the above mixture.

. Shake well and allow the phases to separate.

. Note the colour of thte lower layer.

Result: A deep orange colour indicates the presence of lead.

(This test can detect upto 4 x 10-6 ppm of lead)

Test for Lead in water:

Reagents: Ammonia-Sodium sulphite solution

Dithizone solution

Chlorofrom

Procedure:

. 20 drops of sample was taken in a beaker.

. Adding 15 drops of Ammonia-Sodium sulphite solution.

. Adding 2 drops of Dithizone solution.

. Adding 20 drops of chloroform to the above mixture.

. Shake well and allow the phases to separate.

. Note the colour of thte lower layer.

Result: A deep orange colour indicates the presence of lead.

(This test can detect upto 4 x 10-6 ppm of lead)

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