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in gas chromatography what is the difference between gas flow rate and average linear velocity ?
USV,
2582Through assay by hplc(anhydrous basis) product got 100.8% .How much the potency of that product.Moisture content is 1.7%,Sulfated ash is 0.02%,Total impurities are 0.3%
2 6338what is difference in ods I ods II is this is realy from sorbent / packing characteristics or from other means
1955In gas chromatographic analysis sometimes we use headspace, why it is required instead of manually injection?
1 4765Post New Analytical Chemistry Questions
how can give the expiry period and restadardisation of volumetric solution
Home heating oil or furnace oil what is made from? Can (base oil plus diesel/kerosen) = home heating oil?
how require to select dissolution media? what is discrimination?
why cone formation during dissolution?
Ph meter can show more than 14 ph reading? Why ph range in between 1 to 14 only?
How require to develop GC method? how to select diluent, GAS, column selection and other chromatographic conditions?
What is aggregate and fragments in SEC?
How to fix the sample conc. in Related substances test by HPLC?
Why only hydroxy naphthol blue indicator is used for standardisation of 0.05M EDTA solution instead of solochrome Black T or Euriochrome Black T indicator which is used for all sample analysis with 0.05M EDTA solution?
calibrtion procedue of LC-MS
why octanol used to determine the partition coefficient ?
What is the diffrence in japan mkt requirement in analytical method validation over US?
what is classification of elemental impurities? what is risk assement in elemental impurities?
Describe your field experience sample type collected,sample techniques,field measurements taken and equipment used?
if you given one product then which tests you will perform?
