Hepatitis A and Indian childhood cirrhosis.

Abstract

Example: Case I in the added drop by drop with shaking. It is important to add this acid slowly and to mix carefully to avoid charring the sample. When the whole ml of acid was added the tube was capped and thoroughly shaken and then allowed to stand for about 10 minutes. The acidified sample (pH approx. 1) was then filtered through filter paper no. 42. The clear filtrate was measured in a Vitatron colorimeter using a filter of 510 Fm. The machine was put back to zero on water between each sample reading.