PMID- 32964253 OWN - NLM STAT- MEDLINE DCOM- 20210520 LR - 20210520 IS - 1618-2650 (Electronic) IS - 1618-2642 (Linking) VI - 412 IP - 28 DP - 2020 Nov TI - Rapid determination of propylthiouracil and methimazole by surface-enhanced Raman scattering based on sodium alginate-protected silver nanoparticles. PG - 7827-7836 LID - 10.1007/s00216-020-02912-1 [doi] AB - A rapid, ultrasensitive and selective method has been established to determine antithyroid drugs [propylthiouracil (PTU) and methimazole (MTZ)] by surface-enhanced Raman scattering (SERS). Silver nanoparticles (AgNPs) were synthesized by reduction of silver nitrate (AgNO(3)) with sodium alginate (SA) and were used as SERS substrates. Through optimization of the SERS conditions, including the volume of SA-protected AgNPs solution, pH of Britton-Robinson (BR) buffer solution and concentration of NaCl solution, linear responses were obtained for PTU and MTZ in the concentration ranges of 3.02 x 10(-9)-1.06 x 10(-5) mol L(-1) and 1.21 x 10(-9)-1.21 x 10(-5) mol L(-1), respectively. By the present method, the limits of detection (LODs) for the determination of PTU and MTZ were as low as 1.58 x 10(-10) mol L(-1) and 2.97 x 10(-11) mol L(-1). The method was successfully applied for the determination of PTU and MTZ in real samples. The recovery of PTU and MTZ from actual samples ranged between 97.20 and 104.80%, with relative standard deviations (RSDs) less than 3.63%. FAU - Hao, Baoqin AU - Hao B AD - College of Chemistry, Jilin University, Changchun, 130012, Jilin, China. FAU - Wu, Jiawei AU - Wu J AD - College of Chemistry, Jilin University, Changchun, 130012, Jilin, China. FAU - Ding, Yanru AU - Ding Y AD - College of Chemistry, Jilin University, Changchun, 130012, Jilin, China. FAU - Zhang, Lixia AU - Zhang L AD - College of Chemistry, Jilin University, Changchun, 130012, Jilin, China. FAU - Zhao, Bing AU - Zhao B AD - State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, 130012, Jilin, China. FAU - Tian, Yuan AU - Tian Y AD - College of Chemistry, Jilin University, Changchun, 130012, Jilin, China. tianyuan@jlu.edu.cn. LA - eng GR - No. 20170101174JC/Science-Technology Development Project of Jilin Province of China/ GR - No. 21327803, 21773080, 21711540292/National Natural Science Foundation of China/ PT - Journal Article DEP - 20200922 PL - Germany TA - Anal Bioanal Chem JT - Analytical and bioanalytical chemistry JID - 101134327 RN - 0 (Alginates) RN - 0 (Antithyroid Agents) RN - 3M4G523W1G (Silver) RN - 554Z48XN5E (Methimazole) RN - 721M9407IY (Propylthiouracil) SB - IM MH - Alginates/*chemistry MH - Antithyroid Agents/*analysis MH - Limit of Detection MH - Metal Nanoparticles/*chemistry MH - Methimazole/*analysis MH - Microscopy, Electron, Transmission MH - Propylthiouracil/*analysis MH - Reference Standards MH - Reproducibility of Results MH - Silver/*chemistry MH - Spectrum Analysis, Raman/*methods OTO - NOTNLM OT - Methimazole OT - Propylthiouracil OT - SERS OT - Silver nanoparticles OT - Sodium alginate EDAT- 2020/09/24 06:00 MHDA- 2021/05/21 06:00 CRDT- 2020/09/23 06:37 PHST- 2020/05/14 00:00 [received] PHST- 2020/08/24 00:00 [accepted] PHST- 2020/08/16 00:00 [revised] PHST- 2020/09/24 06:00 [pubmed] PHST- 2021/05/21 06:00 [medline] PHST- 2020/09/23 06:37 [entrez] AID - 10.1007/s00216-020-02912-1 [pii] AID - 10.1007/s00216-020-02912-1 [doi] PST - ppublish SO - Anal Bioanal Chem. 2020 Nov;412(28):7827-7836. doi: 10.1007/s00216-020-02912-1. Epub 2020 Sep 22.