Identification and detection of carbamate pesticides in autopsy tissues using thin-layer chromatography

Preparation, characterization, and Zn2+ adsorption behavior of chemically modified MCM-41 with 5-mercapto-1-methyltetrazole

“…Using silica gel as support N f max values found in the literature ranged from 0.004 mmol/g (acid alizarin violet N as ligand) to 0.18 mmol/g (1,8-dihydroxyantraquinone) [43][44][45]. When the support used was amberlite N f max values ranged from 0.008 mmol/g (8-benzenesulfonoamide quinoline) to 0.17 mmol/g (tiron) [46][47][48][49][50][51][52][53][54][55][56][57][58]. On the other hand, for a mesoporous silica (HMS) functionalized with 1,4-bis-[3-(trimethoxysilyl)-propyl]ethylenediamine, Hossain and Mercier [24] obtained a loading capacity between 0.9 and 1.1 µmol/g.…”

Preliminary assessment of insecticidal activity of Moroccan actinobacteria isolates against mediterranean fruit fly (Ceratitis capitata)

“…(ii) for the carbamates (CA), developing solvent was benzene-ethyl methyl acetone (19:1 v/v). The orange or purple specific spots were visualized after migration by treating the chromatogram with an ethanolic solution of Fast Blue B followed by 20% of aqueous solution of NaOH and viewed under short UV light (254 nm) (Tewari and Singh, 1979); (iii) for the pyrethroids (PY) family, the mobile phase consisted of n-hexanebenzene-acetone (9:1:1 v/v) then after, plates were sprayed with molybdatophosphoric acid and heated to 120°C to visualize gray spots in a yellow background (Ogierman and Silowiecki, 1981); (iv) for the detection of organochlorines (OC), the hexane-chloroformeacetone (9:3:1 v/v) was used as developing solvent. The TLC plates were sprayed with the N,N-Dimethyl-p-phenylazoaniline (methyl yellow), and red spots were viewed under UV radiation at the wavelength of 254 nm (Krzeminski and Landmann, 1963).…”

Characterization and metal sorption of polyacrylamide/chitosan nanocomposite hydrogels synthesized by gamma radiation.

“…There is also an interesting in designing chelating matrices including a variety of organic and inorganic supports have been investigated. They include cellulose copolymers [11,12] and resins of the Amberlite series [13][14][15][16][17][18][19][20]. Silica gel was also used [21][22][23][24][25][26][27][28][29].…”