Feasibility Study on Material Preparation

One of the major requirements for the preparation of a CRM is its stabilization. This should be achieved in such a way that the pattern of compounds is not changed i.e. no degradation) and the long term stabiUty of the material is achieved. y-Irradiation is a procedure which has been used for this purpose  

The effect of heat on butyltin stability was assessed by determining TBT in duplicate in each bottle. The determination was carried out by acetic acid extraction, hydride generation (using NaBHj), cryogenic condensation in a U-tube filled with chromatographic material (Chromosorb GAWHP 80-100 mesh) followed by thermal separation (based on the different organotin 

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