PMID- 34652354 OWN - NLM STAT- MEDLINE DCOM- 20220302 LR - 20220531 IS - 1759-9679 (Electronic) IS - 1759-9660 (Linking) VI - 13 IP - 42 DP - 2021 Nov 4 TI - Rapid determination of sulfamethoxazole and trimethoprim illegally added to health products using excitation-emission matrix fluorescence coupled with the second-order calibration method. PG - 5075-5084 LID - 10.1039/d1ay01391b [doi] AB - In this work, a simple and fast analytical method based on a self-weighted alternating trilinear decomposition (SWATLD) algorithm coupled with excitation-emission matrix (EEM) fluorescence was developed for the simultaneous determination of sulfamethoxazole (SMZ) and trimethoprim (TMP) illegally added to health products. With the second-order advantage, the proposed method obtained satisfactory results in the presence of peak overlap and unknown interferences. The analysis time for a single sample is only 0.8 minutes. The average spiked recoveries of SMZ and TMP in three health product spiked samples were in the range of 91.0-106.2% and 86.8-107.8%, respectively. The relative standard deviations (RSDs) were lower than 8.6%. In addition, verification parameters including sensitivity (SEN), selectivity (SEL), the limit of detection (LOD), the limit of quantification (LOQ), intra-day precision, and inter-day precision were calculated, and the results show that the proposed method is feasible. The quantitative results of the proposed method were further confirmed by the LC-MS/MS method, which proved that the proposed method was efficient and green for drug-abuse monitoring of SMZ and TMP in health products. FAU - Chen, Lu-Zhu AU - Chen LZ AD - State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China. hlwu@hnu.edu.cn. FAU - Wu, Hai-Long AU - Wu HL AUID- ORCID: 0000-0003-4483-2557 AD - State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China. hlwu@hnu.edu.cn. FAU - Long, Wan-Jun AU - Long WJ AD - State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China. hlwu@hnu.edu.cn. FAU - Wang, Tong AU - Wang T AD - State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China. hlwu@hnu.edu.cn. FAU - Tong, Gao-Yan AU - Tong GY AD - State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China. hlwu@hnu.edu.cn. FAU - Yu, Ru-Qin AU - Yu RQ AUID- ORCID: 0000-0001-9440-8899 AD - State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China. hlwu@hnu.edu.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20211104 PL - England TA - Anal Methods JT - Analytical methods : advancing methods and applications JID - 101519733 RN - AN164J8Y0X (Trimethoprim) RN - JE42381TNV (Sulfamethoxazole) SB - IM MH - Calibration MH - Chromatography, Liquid MH - Spectrometry, Fluorescence/methods MH - Sulfamethoxazole/*analysis/chemistry MH - *Tandem Mass Spectrometry MH - *Trimethoprim/analysis/chemistry EDAT- 2021/10/16 06:00 MHDA- 2022/03/03 06:00 CRDT- 2021/10/15 12:33 PHST- 2021/10/16 06:00 [pubmed] PHST- 2022/03/03 06:00 [medline] PHST- 2021/10/15 12:33 [entrez] AID - 10.1039/d1ay01391b [doi] PST - epublish SO - Anal Methods. 2021 Nov 4;13(42):5075-5084. doi: 10.1039/d1ay01391b.