TLC. The process steps of HPTLC are identical to classical TLC. The main difference between them is in thecharacteristics of the separation plate. HPTLC plates are based on optimized silica gel 60 with a signif
Why would you develop two separate TLC plates in different mobile phases during a column chromatography experiment? What are the different kinds of separations in GC chromatography? What are the differences between band broadening and peak in chromat...
Why is iodine used for thyroid imaging (as opposed to any other element)? What are the implications for society, benefits, drawbacks, practicality, and reactivity of table salt? Describe any practical advantages lead has for its use in x-rays absorption. ...
BTW the mobile phases I've tried are ethyl acetate/hexane, ethyl acetate/chloroform and ethyl acetate/petroleum ether, all in varying ratios, if you could recommend some other good solvent systems, I'd greatly appreciate it.
Phosphomolybdic is used asa stain for developing thin-layer chromatography plates, staining phenolics, hydrocarbon waxes, alkaloids, and steroids. Conjugated unsaturated compounds reduce PMA to molybdenum blue. How do you dissolve phosphomolybdic acid?
Different styles and sizes may be used depending upon the task at hand. Cooking large portions or steaming large plates of fish requires a large wok (20+ inches) and cooking stir-fried dishes to order calls for smaller ones similar to the size you would use at home. Whether it’s for ...
aMelting points were determined in capillaries on a domestic melting point apparatus and are uncorrected. Silica gel plates were used for analytical TLC and the spots were visible with iodine vapor. 熔点在血丝在国内熔点用具被确定了并且是未更正的。 矽土凝胶板材为分析TLC使用了,并且斑点是可看见的与...
The producer will assume no liability for any eventual damages caused by misuse of the product or noncompliance with these instructions. • The new hose-sets supplied with the appliance are to be used and the old hose-sets should not be reused. • Before performing any maintenance on the...
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What advantages does using iodine have over using UV to view TLC plates (and vice versa)? What is the difference between saturated and unsaturated hydrocarbons? What is the purpose of food irradiation? What are the functions of vitamin K in the human body?