- P-ISSN 1225-0163
- E-ISSN 2288-8985
This study compared the efficacy of chiral GC and chiral HPLC for the analysis of nicotine. To develop a suitable dispersive liquid-liquid microextraction (DLLME) method, the following parameters were optimized: pH, extraction solvent, dispersive solvent, type and quantity of salt, and laboratory temperature. The validation of the method was carried out by the established HPLC method. The LODs were 0.11 μg/mL and 0.17 μg/mL for the (S)- and (R)- enantiomers, respectively. The LOQs were 0.30 μg/mL and 0.44 μg/mL, respectively. The optimal calibration range was between 0.30-18 μg/mL and 0.44-4.40 μg/mL, respectively, and the correlation coefficient (r2) was 0.9978-0.9996. The intra-day accuracy was 79.9-110.6 %, and the intra-day precision was 1.3-12.0 %. The inter-day accuracy was 87.8-108.0 %, and the inter-day precision was 4.0-12.8 %. E-liquid and biological fluids (urine and saliva) were analyzed using the established method.
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