Quantitative estimation of brominated compounds for restriction of hazardous substances (RoHS) present in computer key board switches (CKBS) using gas chromatography-mass spectrometry
- Authors: Kadari R.1, Rabba G.1, Ganti S.1, Bhukya M.1, Urlagaddala R.1, Manda R.P.1, Munirathnam N.R.1
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Affiliations:
- Centre for Materials for Electronics Technology (CMET) IDA Phase III
- Issue: Vol 71, No 1 (2016)
- Pages: 133-139
- Section: Articles
- URL: https://journals.rcsi.science/1061-9348/article/view/181465
- DOI: https://doi.org/10.1134/S106193481601010X
- ID: 181465
Cite item
Abstract
A reliable, cost effective and user-friendly method has been used for the determination of polybrominated diphenylethers (PBDE) in computer key board switches (CKBS). The presence of the commercially added BDE-209 which is decabromo diphenyl ether (Deca-BDE) congener has been identified, established and estimated using gas chromatography–mass spectrometry. For extracting the analyte quantitatively from the material, Soxhlet extraction using toluene followed by multi-layer silica column chromatography was used to obtain the desired unambiguous quantitative results as per standard method. The results were confirmed by repeating, reproducing using standard addition recovery and by calculating measurement uncertainty. The CKBS samples contain around 49.6 ± 0.5 mg/kg of BDE-209. The recovery of spiked standard was between 90–93% and the linearity of the standard curve had a correlation coefficient of R2 = 0.9974.
About the authors
Ramaswamy Kadari
Centre for Materials for Electronics Technology (CMET) IDA Phase III
Email: rathnam@cmet.gov.in
India, Cherlapally, HCL (PO), Hyderabad, 500051
Govindaiah Rabba
Centre for Materials for Electronics Technology (CMET) IDA Phase III
Email: rathnam@cmet.gov.in
India, Cherlapally, HCL (PO), Hyderabad, 500051
Swarnabala Ganti
Centre for Materials for Electronics Technology (CMET) IDA Phase III
Email: rathnam@cmet.gov.in
India, Cherlapally, HCL (PO), Hyderabad, 500051
Mahender Bhukya
Centre for Materials for Electronics Technology (CMET) IDA Phase III
Email: rathnam@cmet.gov.in
India, Cherlapally, HCL (PO), Hyderabad, 500051
Rambabu Urlagaddala
Centre for Materials for Electronics Technology (CMET) IDA Phase III
Email: rathnam@cmet.gov.in
India, Cherlapally, HCL (PO), Hyderabad, 500051
Ravi Prakasa Reddy Manda
Centre for Materials for Electronics Technology (CMET) IDA Phase III
Email: rathnam@cmet.gov.in
India, Cherlapally, HCL (PO), Hyderabad, 500051
Nagegownivari Ramachandra Munirathnam
Centre for Materials for Electronics Technology (CMET) IDA Phase III
Author for correspondence.
Email: rathnam@cmet.gov.in
India, Cherlapally, HCL (PO), Hyderabad, 500051