Cumulative CAMAG Bibliography Service CCBS
Our CCBS database includes more than 11,000 abstracts of publications. Perform your own detailed search of TLC/HPTLC literature and find relevant information.
The Cumulative CAMAG Bibliography Service CCBS contains all abstracts of CBS issues beginning with CBS 51. The database is updated after the publication of every other CBS edition. Currently the Cumulative CAMAG Bibliography Service includes more than 11'000 abstracts of publications between 1983 and today. With the online version you can perform your own detailed TLC/HPTLC literature search:
- Full text search: Enter a keyword, e.g. an author's name, a substance, a technique, a reagent or a term and see all related publications
- Browse and search by CBS classification: Select one of the 38 CBS classification categories where you want to search by a keyword
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J. Sep. Sci. 2300332 (2023). HPTLC of cilnidipine on silica gel with n-heptane - ethyl acetate - triethyl amine 6:14:1. Quantitative determination by absorbance measurement at 254 nm. The hRF value for cilnidipine was 42. Linearity was in the range of 100-500 ng/zone. Intermediate precisions were below 2 % (n=3). LOD and LOQ were 24 and 72 ng/zone, respectively. Recovery was between 98 and 102 %.
J. Sep. Sci. 46, 2300139 (2023). HPTLC of thiocolchicoside (1) and aceclofenac (2) on silica gel with heptane - ethyl acetate - ethanol 7:1:2. Quantitative determination by absorbance measurement at 278 nm. The hRF values for (1) and (2) were 16 and 60, respectively. Linearity was between 20 and 100 ng/zone for (1) and 100 and 500 ng/zone for (2). Intermediate precision was below 2 % (n=3). Recovery was between 98 and 102 % for (1) and (2).
Trends Anal. Chem. 160, 116964 (2023). Review of the analysis techniques for the diagnosis and determination of candidate drugs in the treatment of COVID-19 in human biological fluids in the period 2015-2022, including TLC and HPTLC. Sofosbuvir, daclatasvir, ledipasvir, and ribavirin are some of the common antiviral drugs for the treatment of COVID-19, whose separation and simultaneous analysis was performed by HPTLC.
J Pharmacogn Phytochem, 12(1), 159-167 (2023). TLC of methanolic Soxhlet extracts on silica gel with toluene – ethyl acetate – formic acid 16:4:1. Visualization under UV 254 nm and 366 nm. Two bands only (hRF values 10 and 45), observed with densitometric scanning at UV 366 nm, were present in Trianthema portulacastrum roots (Aizoaceae), whereas a different profile was observed with Boerhavia diffusa roots (Nyctaginaceae), which is sometimes substituted for T. portulacastrum.
J. Liq. Chromatogr. Relat. Technol. 45, 100-106 (2022). HPTLC of metformin (1), pioglitazone (2), glipizide (3), and glimepiride (4) in herbal as well as dietary supplements on silica gel with cyclohexane - dichloromethane - 1-propanol - saturated solution of ammonium acetate in acetic acid 7:5:2:2. Quantitative determination by absorbance measurement at 254 nm. The hRF values for (1) to (4) were 26, 46, 55 and 79. Linearity was in the range of 200-1200 ng/zone for (1) to (4). Intermediate precisions were below 10 % (n=9). LOD and LOQ were 186 and 565 ng/zone for (1), 192 and 581 ng/zone for (2), 154 and 465 ng/zone for (3) and 222 and 674 ng/zone for (4), respectively. Recovery was between 97.4 and 105.4 % for (1), 98.2 and 105.4 % for (2), 100.2 and 103.1 % for (3) and 98.8 and 104.4 % for (4).
J Pharm Bioallied Sci 15(Suppl.2), S948-S951 (2023). Sample was the ethyl acetate fraction of an ethanolic extract of Viola odorata aerial parts (Violaceae). Standards were coumarinic compounds: esculetin (1) and umbelliferone (2). TLC and HPTLC on silica gel with toluene – ethyl acetate – formic acid 5:4:1. Visualization under UV 254 nm and 366 nm; densitometric scanning at 366 nm. Both (1) and (2) were found in the extract (hRF values 30 and 53, respectively, in TLC). Alternative mobile phases were also tested (TLC only): toluene – ethyl acetate 1:1 (hRF values 47 and 68) and chloroform – methanol 97:3 (hRF values 20 and 41).
J. Liq. Chromatogr. Relat. Technol. 45, 217-225 (2022). HPTLC of capecitabine (1) and thymoquinone (2) on silica gel with toluene - methanol 3:1. Quantitative determination by absorbance measurement at 254 nm. The hRF values for (1) and (2) were 52 and 86, respectively. Intermediate precisions were below 2 % (n=3). LOD and LOQ were 17 and 54 ng/zone for (1) and 39 and 119 ng/zone for (2), respectively.
J. Pharmacogn. Phytochem. 12(1), 6-14 (2023). TLC silica gel layers were used to monitor the purification through column chromatography (CC) of a chloroform fraction of the methanolic root bark extract of Rauvolfia vomitoria (Apocynaceae). Mobile phases were petroleum ether – ethyl acetate 4:1 (MP1), dichloromethane – methanol 20:1 (MP2), and dichloromethane – methanol 15:1 (MP3). Visualization under UV 254 nm. Preparative TLC on thicker silica gel was performed on two subfractions: (A) with dichloromethane – methanol 100:7 for the isolation of the methyl esters of eudesmic acid and of trimethoxycinnamic acid (hRF values 35 and 28, respectively, in MP1); (B) with MP2 for the isolation of an indole alkaloid: kumujan B (= 1-carbomethoxy-β-carboline, hRF value 40 in MP2). Other indole alkaloids were isolated through CC: ajmaline, mauensine and reserpine (hRF values 35, 13 and 47, respectively, in MP3).