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摘要:
New method for rapid and quantitative analysis of 6-benzylaminopurine (6-BA) residues in sprout beans was studied by using FAST-SPE and portable surface-enhanced Raman spectroscopy (SERS). With homemade sprout bean samples as blank control, 6-BA solutions extracted from inserted-treatment samples showed typical characteristic Raman peaks at 1 002 cm(-1) tested by SERS, and normalized 1 002 cm(-1) intensities had a good linear relationship with gradient concentrations of 6-BA insert-standard solutions. The high concentration linear range was 0.5 similar to 14 mu g . mL(-1), and the low one was 0.1 similar to 2 mu g . mL(-1). The quantitative detection limit was down to 0.02 mg . kg(-1) that was below the maximum allowable residues (MAL) of 0.2 mg . kg(-1) in related National Standard. The recoveries were 82.3%similar to 95.1% and the RSD was below 5%. This method with portable equipment and simple pre-treatment showed good reproducibility, short test time-consuming and easy operating, and thus it would provide efficient and sensitive solutions for large-scale on-site and rapid detections.
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来源 :
SPECTROSCOPY AND SPECTRAL ANALYSIS
ISSN: 1000-0593
年份: 2012
期: 5
卷: 32
页码: 1266-1269
0 . 7 0 0
JCR@2022
ESI学科: CHEMISTRY;
JCR分区:4
中科院分区:4
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