Abstract：
:3-Monochloropropane-1,2-diol (3-MCPD) is a common food processing contaminant and a simple, rapid, sensitive and low cost monitoring technology is needed due to its potential carcinogenic nature. Carbon dots directly intercepted on filter paper provide high fluorescence intensity and can be adapted for use as a sensor. We synthesized a carbon dot-filter paper in combination with a molecularly imprinted polymeric film to extract 3-MCPD from samples. This grafted paper-based sensor exhibited a high adsorption capacity (68.97 mg g-1), an excellent selectivity (imprinting factor = 4.5) and a low detection limit (0.6 ng mL-1). Recoveries ranged from 97.2% to 105.3% with relative standard deviations <5.6%. The results obtained using this method were linearly correlated to those of the classic GC-MS method (r = 0.998). Based on the Chinese National Standard, this study provides a novel and powerful platform for the simple, rapid, sensitive and on-site analysis of 3-MCPD in soy sauce.
journal_name
Food Chemjournal_title
Food chemistryauthors
Fang M,Zhou L,Zhang H,Liu L,Gong ZYdoi
10.1016/j.foodchem.2018.08.133subject
Has Abstractpub_date
2019-02-15 00:00:00pages
156-161eissn
0308-8146issn
1873-7072pii
S0308-8146(18)31546-2journal_volume
274pub_type
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