J. AOAC Int. 79, 1277-1280 (1996). TLC of lamotrigine (3,5-diamino-6-[2,3-dichlorophenyl]-1,2,4-triazine), 3,5-diamino-6-[2-methoxyphenyl]-1,2,4-triazine (as internal standard), carbamazepine and carbamazepine-10,11-epoxide, phenytoine, phenobarbitone, clonazepam, clobazam, on silica with ether - methanol - acetic acid 80:19:1 protected from light. Quantification by densitometry at 306 nm. Detection limit of lamotrigine 0.27 mg/ml.

Abstract G-19, IPC (2005). HPTLC for estimation of corticosterone in rat plasma on silica gel with chloroform - methanol - water 9:10:1. Quantitative determination by absorbance measurement at 245 nm. Betamethasone was employed as internal standard. The extraction of plasma with ethyl acetate gave an average recovery of >85 %. The linearity was within the range of 30-300 ng/mL with LOQ being 30 ng. The method was found to be rugged and robust.

J. AOAC Int. 91, 1227-1236 (2008). HPTLC on silica gel using chloroform - ethanol - water - triethylamine 5:5:1:5 for separation of phospholipids and chloroform - acetone - methanol - acetic acid - water 46:17:15:14:8 and chloroform - methanol - acetic acid 13:5:2 for separation of glycolipids. Visualization by spraying with primuline reagent (Direct Yellow) and observation under UV light at 366 nm. Also MALDI-TOF-MS analysis.

International Seminar on Herbal Drug Research, PN-009 (2009). Bioassay guided fractionation of Lagenaria siceraria was carried out on a silica gel column with solvents in ascending order of polarity. Each fraction obtained was subjected to preparative TLC on silica gel with n-butanol - methanol - water 3:1:1. Four bands with different Rf values were collected and active compounds were extracted and screened for antihyperlipidemic activity.

J. Planar Chromatogr. 24, 534-538 (2011). HPTLC of clarithromycin in plasma on silica gel (prewashed with methanol) with ethyl acetate - methanol - 15 % ammonium acetate (pH 10.6) 7:2:1 in a twin-trough chamber with saturation for 15 min. Detection by dipping into xanthydrol solution (10 % in methanol). Quantitative determination by densitometry in absorbance mode at 506 nm. The hRf was 62. The method was linear over the range of 0.1-3.0 µg/mL (r2 = 0.9974). The recovery (by standard addition) was over 85 %. The intra-day and inter-day precision (%RSD) of the assay was in the range of 0.8-4.6 %. The recovery was above 95 %.

J. Chil. Chem. Soc. 59, 2405-2408 (2014). HPTLC of trazodone in human serum on silica gel with toluene - acetone - ethanol - ammonium 18:14:4:1. Quantitative determination by absorbance measurement at 290 nm. The hRF values of trazodone and its metabolite were 82 and 39, respectively. Linearity was between 0.2 and 2 ng/zone. The intermediate intra-day and inter-day precisions were below 3.5 % (n=3). The LOD and LOQ were 16 and 48 pg/zone, respectively. Recoveries for trazodone were in the range of 94.7-99.0 %.

J. AOAC Int. 101, 1993-2000 (2018). HPTLC of neutral lipids in fatty acid methyl ester (FAME)-derived biodiesel (1) and sphingolipids in human plasma (2) on LiChrospher or silica gel with a 4-step gradient based on t-butyl methyl ether, dichloromethane, and n-heptane for (1) and a 7-step gradient based on methanol and dichloromethane for (2). Detection of neutral lipids by dipping into a methanolic primuline solution (0.02 g/100 mL), followed by fluorescence recording at 366/>400 nm. Detection of sphingolipids by absorbance measurement at 190 nm. Zones of interest were eluted into an electrospray ionization-ion trap MS (ESI-MS) using a TLC-MS interface. _x000D_

Apoth. Ztg. 125, 1513-1517 (1985). Saponinhaltige Drogen und Fertigarzneimittel. HPLC-Analyse am Beispiel von Rosskastaniensamen. (Qualitative and quantitative analysis of the saponins of hippocastani semen and pharmaceutical preparations using reversed-phase HPLC.) TLC of chestnut extracts on silica with chloroform - methanol - acetic acid - water 60:32:12:8. Identification of beta-escin and cryptoescin.