what are ligases?which type of reactions they will catalyse?1 5063
what happens when aminoacids react with alcohols?3 13319
what is the difference between coordinate covalent bond and covalent bond?9 27414
what are the 4 classes of unsaturated fatty acids?1 3902
why the atomic weights are in fractions?1 5421
What is a repartition coefficient?
HI, I AM SUNIL BISHNOI.I AM PREPARING FOR ISHRO ASTRONOTES EXAM.PLEASE TELL ME ALL ABOUT THIS.
what is the importance of peak purity in HPLC and how we can calculate through manul(not software)?
How hydrate is forming along with API?
what kind of question can be asked in interview for UV- VISIBLE & give me answer ?
What is a proteic unit?
describe the lewis dot structure of Mg2+?
Qc interview questions
What are acounting Pi electron's?
why should we perform dissolution PVT calibration only by UV spectrometer, not by HPLC ?
Sr-90, a radioactive isotope, is a major product of an atomic bomb explosion. It has a half life of 28.1 year. Calculate the first order rate constant for this nuclear decay and the fraction of 90Sr that remains after 10 half lives?
How can we confirm the HPLC column is end-capped or not? Is it possible to identify by physical appearance?
what is the procedure for cleaning of lenses of hatr accesory of ftir instrument?
composition of german silver
I have compare C2H2-air and C2H2-N2O flame AAS on determination calcium. Both use same range of std to plot calibration curve. (2-6ppm) When i measure the sample with phosphate, KCl and LaCl, C2H2-N2O flame give false positive result, around 0.5ppm. When i measure the sample with phosphste, KCl and EDTA. C2H2-N2O flame also give 0.5ppm false positive. But both above mentioned sample would not give false positive when measured by C2H2-air flame. What is the reason?