Container Material Considerations For Collection And Storage Of Atomic Absorption Spectroscopy Samples: New Containers Require Pre-Treatment

Analysis by Atomic Absorption Spectroscopyrequires collection, storage and at times transportation of samples. Containers can pose a contamination risk of Atomic Absorption Spectroscopysamples and the extent of contamination could be significant over extended storage periods.

deionised distilled waterIt goes without saying that the container should’ve been inert with least possibilities of leaching or adsorption.

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Quartz exists in opaque and transparent forms. For example, the ‘pre treatment’ minimizes the alkaline character of glassware. Containers made of transparent parts are used for sampling for trace metals AAS analysis. This is the case. New containers require ‘pretreatment’. Opaque form has higher trace element concentration and isn’t suitable for trace metal analysis. Just think for a moment. Glass containers may be soaked suddenly in 1 concentrated at or HCl prior to use. Plastics will be soaked in 1 nitric acid for a week followed by a week in HCl and finally a week in deionised water.

LDPE and HDPE bottles are typically used for extended storage of solutions with upto 10 Dr Deepak Bhanot is a seasoned professional having nearly 30 years expertise beginning from sales and product support of analytical instruments. His mission is to develop training programs on analytical techniques and share his experiences with broad spectrum of users ranging from professionals engaged in analytical development and research as well as young enthusiasts fresh from academics who wish to embark upon a career in analytical industry. UK for doctorate research in analytical chemistry, just after completing his graduation and post graduation from elhi University and IT Delhi he went on to Loughborough University of Technology.

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