Answer Posted / ch. appala naidu
AAS instrument is calibrate by Copper standard solution.
Usually 5 ppm copper standrd solution give absorbance 0.5
to 0.6 atomic units(a.u.)
The 5 ppm Copper standard solution should be prepare from
traceable level.
| Is This Answer Correct ? | 12 Yes | 2 No |
Post New Answer View All Answers
Why a1% value is used for some product ? What is the criteria for selection a1% value ?
why salisylic acid not using now days for disdolution calibration?
can we use the same detector in HPLC as well GC and what could be the differences we can find in the final chromato graph in any aspects?
how will you do the prep for unstable componds?
if peak get problamatic then what require to do?
Why we used in n-butyl acetate water content terminology while in ethyl acetate we used moisture content terminology?
function of detecter in hplc ,gc and spectroscopy? function of carrier gas in gc?
Why we select scan range from higer wavelength to lower wavelength in uv visible spectroscopy and ftir spectroscopy ? .
Why sodium hydroxide used for maintain pH of phosphate buffer
What are the primary considerations in extractables and Leachables ?
In rs method development when we are going area normalization method to dilute standard method?
what is mean by dissolution biowaiver study?
How to calibration of the uv spectroscopy and its test?
In HPLC calibration, caffeine is used as primary standard for wave length calibration due to caffeine is having dual maxima at 273 & 205 nm and one minima at 245 nm. Any body can give reference of these details from any pharmacopeia (with chapter no.) or any other authentic guideline?
Principle of single pan analytical balance
