J.A.O.A.C. 71, 949-953 (1988). TLC of ochrotoxin A on RP18 with methanol - water (adjusted to pH 2.1 with phosphorus acid) 70:30. Detection under UV 366 nm. Quantification after scraping of spots and elution.

AOAC Int. 80, 688-692 (1997). TLC of disulfoton, phorate, terbufos, terbufos sulfoxide, terbufos sulfone, terbufos oxon sulfoxide, terbufos oxon sulfone on silica with toluene, toluene - acetone 17:3, toluene - acetone - methanol 18:1:1, and chloroform - methanol 46:1. Detection by spraying with PdCl2-reagent and immediately exposure to iodine vapor. An alternative method was Ackermann's esterase inhibition technique (porcine or bovine liver as enzyme source, 2-naphthylacetate as substrate, and fast blue salt B as coupling reagent for released 2-naphthol). Detection by esterase inhibition gave detection limits in the nanogram and subnanogram range.

J. Liquid Chrom. 8, 1327-1346 (1985). TLC separation of aldicarb, bavistin, carbofuran, dimecron and oxamyl on soil coated plates (particle size100 mesh) using water (pH 7) and water of pH 4 (adjusted with 0.1 N HCI) and pH 10 (adjusted with 0.1 N NaOH). Detection of aldicarb, bavistin, carbofuran, oxamyl by spraying with 5 % methanolic KOH followed by 0.1 % p-nitrobenzenediazonium tetrafluoroborate. Detection of dimecron with 0.5 % brilliant green in acetone.

J. AOAC Int. 82, 25-30 (1999). Validation of video densitometric and classical slit-scanning determinations of pesticides on TLC plates for linearity, precision, and detection limit. A comparison of results showed that slit-scanning is more sensitive and more precise than video densitometry. According to validation requirements the relative standard deviation of 3.5 - 5.3% for video densitometry is, however, acceptable . Linearities are considered as very good and almost identical for both techniques. The main advantage of video technology is the speed of a few seconds compared with 20 min with scanning densitometry; it provides excellent archiving facility, and image and chromatographic data can be stored together, edited, and used for many tasks. TLC of propham, chlorpropham, tetramethrin, a-cypermethrin, diflubenzuron, atrazine on silica gel with methanol - water 4:1.

J. Liq. Chromatogr. Relat. Technol. 35, 1415-1428 (2012). HPTLC of prometryn in wine samples on silica gel with tetrahydrofuran - n-heptane 1:4 in the first direction and with methanol - water 7:3 in the second direction after the plate was turned by 90°. Quantitative determination by absorbance measurement at 223 nm. The hRf value of prometryn was 35. Linearity was in the range of 220-1320 ng/zone. Limits of detection and quantification were 110 and 330 ng/zone. The method was compared with a validated HPLC-DAD method and both methods are useful for correct identification of pesticides in complicated mixtures.

J. Planar Chromatogr. 2, 387-389 (1989). TLC separation of carboxylic acid herbicides on calcium sulfate layers (NP-TLC and S-TLC) with acetone, benzene, carbon tetrachloride or chloroform and on impregnated (olive oil, paraffin oil, silicone oil) calcium sulfate layers (IP-RP-TLC) with benzene and carbon tetrachloride, carbon tetrachloride and benzene, chloroform and benzene, and ethyl acetate and carbon tetrachloride as eluents.

J. Chromatogr. 643, 291-303 (1993). Review with 117 references on the state of the art chromatographic methods for the determination of herbicide residues, including TLC, GC and LC.

J. Planar Chromatogr. 13, 231-234 (2000). RPHPTLC on RP 18 with methanol - water mixtures. The concentration of methanol in the mobile phase ranged from 50 to 90 % in steps of 10 %. Visualization under UV.