A Study to Enhance the ICP-OES Detection of Lead by Incorporating Chemical Additives

ICP-OES emission spectrophotometry is an important method for the identification of metals in environmental samples. The sensitivity of ICP-OES to lead needs enhancement, however. Studies have been carried out in atomic absorption spectroscopy, using oxidizers and other additives to boost hydride formation lead, but this present study has discovered, for the first time to the best of our knowledge, the effect of an oxidizing agent without any hydride reaction, especially in emission spectroscopy. Four different oxidizers containing hydrogen peroxide were compared in this experiment: nitric acid, vanadium pentoxide-nitric acid, potassium permanganate-nitric acid, ammonium persulphate-nitric acid. The oxidizer and its reaction conditions were then optimized. In different actual samples, such as old paint scraps, plastic toys and food packaging material, the proposed method was then implemented for the detection of lead. Only the combination of hydrogen peroxide and nitric acid offers the most obvious observation of the lead detectability additives. The detection of lead using ICP-OES with the proposed additives is therefore concluded to be an improvised and simple process. The findings showed that among the analysed samples, the highest amount of lead (23.84 mg/g) was found in old paint scraps.

Author (s) Details

R. Ganeshjeevan
Eco Analytical Lab and †Chemical Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai, T.N., India.

F. Vinothini
Eco Analytical Lab and †Chemical Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai, T.N., India.

S. Suresh
Eco Analytical Lab and †Chemical Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai, T.N., India.

S. Raja
Eco Analytical Lab and †Chemical Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai, T.N., India.

View Book :- https://stm.bookpi.org/CACB-V1/issue/view/12

Leave a Reply

Your email address will not be published. Required fields are marked *