Problem of plastic container for storage of chemicals for nucleic acid isolation kits for PCR use

There is a lot of use of plastic products in the biotechnology field. This report of RNA isolation kit is showing that there is a reaction taking place with a chemical (guanidine thiocyanate) in storage bottle during the self-life period as this liquid changed its color from transparent to yellow along with building the precipitation at the bottom. It makes the chemical unsuitable for use. The problem was solved through replacing the storage container from other manufacturer. Therefore, there is a need to select the storage bottles carefully for long term storage of chemicals to be used in biotechnological methods.