HF behaves as a base in which of the following solvents? A. NH3 (l) B. H2O (l) C. CH3COOH (l) D. H2SO4 (l) E. Aqueous 0.10 M NaOH F. None of above
How can calculate intra day and inter day precision?
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How can analysis partial least square by using spss software?
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When you draw a calibration curve is always the slope is higher than the original point at its intersection with the y-axis, with the knowledge that the solution used is blank solution.and when to...
04 May 2016 4,855 3 View
What relationship between peak width and length of column in chromatography?
03 April 2016 1,366 0 View
The theoretical plate numbers for a gas chromatography system are found to 55.3, 96.9 and 89.8 for linear carrier gas velocities of 0.55, 1.65 and 3.10 cm\sec respectively. Calculate the maximum...
03 April 2016 9,166 3 View
In general on what basis are chosen analytical method?
02 March 2016 7,236 9 View
02 March 2016 5,607 4 View
If the signal affected by noise generated on the detector and thus affect the calibration curve in analytical chemistry method. How can I reduce them?
02 March 2016 8,567 4 View
What is the best way to write the cover letter for journals of Thomson Reuters?
04 May 2015 3,075 6 View
I need to do some experiment with it in liquid form.
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I work on MCF7 cell cell for anticaner purpose and I wa to do drug preperation the drug ( secondary metabolites extracted from Aspergillus) My question which solvent is better with these secodary...
03 August 2024 4,725 2 View
Hello everyone, I need to dissolve stigmasterol for an animal experiment, but it hasn't dissolved in either DMSO or vegetable oil. Can anyone recommend the best solvent for stigmasterol?
01 August 2024 7,504 2 View
Why methanol and sulphuric acid, used in the analysis of polyhydroxyalkanoates (PHA) methyl esters by GC-MS? Additionally, why do we typically use non-polar solvents in GC-MS?
22 July 2024 1,210 2 View
Is it the best optimization ratio based on experiments?
22 July 2024 8,170 0 View
If you don't understand my question let me know
21 July 2024 563 1 View
I used several solvents and measured the absorbency and determined the total phenolic content, but the results were similar after dropping them on the titration curve; What is the reason, please help
17 July 2024 5,151 5 View
Hello everyone, I am facing a consistent issue in my NMR spectra with an unwanted peak appearing at 1.25 ppm. This peak seems to vary with the amount of sample: it becomes more pronounced with...
15 July 2024 9,065 4 View
I synthesised a nanocarrier by conjugation MOF (MIL-100) with folic acid for use in chemotherapy but the samples didn't dissolve completely in aqueous solution or DMSO. Instead, they only...
15 July 2024 2,414 1 View
as of my knowledge z90 is acrylic based sealant adhesive.
09 July 2024 8,660 4 View