Assays for the components ranged from 100 to 88% of label values, and agreement between duplicate samples was better than 5%. Use of phenacetin as an internal standard for determination of aspirin and caffeine was not advantageous. The analysis serves well as an introduction to quantitative TLC ...
Free Essay: Verify an unknown sample by aids of TLC and melting point analysis The objective of the experiment was to apply TLC and melting point analysis to...
TLC Analysis of an Analgesic “Analgesia”: Greek for the deadening or absence of pain without loss of consciousness Analgesics: compounds that relieve pain Range from aspirin to morphine, and other related narcotics Many (over the counter) analgesics -Fevadol, Paracetamol, Panadol(acetaminophen) Nur...
[Journal of Chromatography Library] Carbohydrate Analysis by Modern Chromatography and Electrophoresis Volume 66 || Chapter 13 TLC and HPLC of glycosphingo... Müthing,Johannes 被引量: 0发表: 2002年 Isolation and structure characterization of a (4-O-methyl-D-glucurono)-D-Xylan from the skin...
The simplex method has been employed to find the optimum composition of eluent:chloroform:dioxane:methanol:ammonia:acetonitrile (3.5:15:2:1.5:15 v/v/v/v/v). The influence of adulterants and diluents: magnesium stearate, acetylsalicylic acid (aspirin), p‐hydroxyacetanilide (paracetamol), procaine...
The discussion is based on two examples: a spot of decomposed aspirin and sixteen spots with different concentrations and contaminations of ciprofibrate and clofibric acid. It is concluded that only visual inspection of principal component analysis (PCA) scores can detect inhomogeneity in the cases...
The analysis of the sample conducted by the TLC technique is equal to 20% of the costs which would be incurred by analyzing this sample by the HPLC or GC techniques. In the case of TLC, there is no need for tedious and time-consuming sample preparation and the removal of impurities or ...