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- Title
Method development and validation of hydrogen phosphide and inorganic bromide determined as fumigant residues in commercialized rice grains in Thailand.
- Authors
Wittayanan, W.; Jongmevasna, W.; Kaewklapanyacharoen, L.; Atisook, K.
- Abstract
Commercialized rice in Thailand was monitored for assessment of fumigant residues contaminant. Two-hundred eighty-nine rice samples were collected from different parts of Thailand during 2013-2014 and analyzed for hydrogen phosphide (HP) and inorganic bromide (IB) residues. The study was conducted by using gas chromatography-mass spectrometry (GCMSD) coupled with Headspace and gas chromatography-electron capture detector (GC-ECD) to determine HP and IB. The limit of detection of the methods was 0.02 and 2 mg kg-1 for HP and IB respectively, with recovery 85-108%. Detectable HP residues were found in 30% of the samples in the range of <0.05-2 mg kg-1 and 10% of samples containing IB were traceable in the range of <5-20.6 mg kg-1. The contaminations of HP in 19 samples were higher than the MRL set by the Ministry of Public Health of Thailand but the concentration of IB found in all samples was within the standard limit.
- Subjects
THAILAND; PHOSPHINE; BROMIDES; RICE; RICE residues; GAS chromatography/Mass spectrometry (GC-MS)
- Publication
International Food Research Journal, 2017, Vol 24, Issue 3, p1204
- ISSN
1985-4668
- Publication type
Article