Which type of analysis we have to done uv spectroscopy2 6658
From where 16 or 5.545 is derived in theoretical plates calculation formula by USP or JP/BP/DAB and what is meaning of this coefficient and impact in calculation ?2 7837
why we are using k2cr207 in uv calibration ? why we r not using kmno4?1 3719
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?913
WHAT IS DIFFERENCE B/W MALTINGRANG/DSC1162
Home heating oil or furnace oil what is made from? Can (base oil plus diesel/kerosen) = home heating oil?865
what is the principle of UV Vis spectroscopy, AAS, ICP OES,ICPAES, ICP-MS and FTIR6060
What is the principle of HPLC, GC, LCMS, GCMS,LC QQQ, GC QQQ, LC Q TOF and GC Q TOF. What are the applications and Specificity?5828
What is the difference between Spectroscopy and spectrophotometry,What are the applications?4 7184
What is difference b/t uv detector and rid5 5896
What is method validation in quality control
What is Band broading effect explain
My question about gas chromatography sulfur chemiluminsecence detector. I test unknown sample gas by GC-SCD (calibrated ) and the result of *H2S is 279 PPM , *but when I test the same sample with the GC-TCD (calibrated ) the value of *H2S is 2500 PPM . I'd like to inform you that both GCs are calibrated and have very good operation conditions with stable parameters . the question is if the sample gas with higher H2S over detection limits of SCD detector (1000 ppm). why the result it 279 ppm Best regards
what is the different in Total ash, sulphated ash, acid insoluble ash, alcoholic or non alcoholic ash?
what is different when impergnated silica plates are used in separation of azo dyes using column chromatography?
WHICH STANDARD WE USE IN SILICA ANALYSIS IN SILICA-GEL METHOD FOR SOLID SAMPLE
What is aggregate and fragments in SEC?
Why potassium dichromate was using in Uv calibration?
How would you decide dissolution medium for NCE compound of class I drug
Explain the relations between number of carbon atoms in alkanes and retention time ?
Why sometime potassium ortho phosphate mix with acetone use for sample preparation for hplc
iam usig ph buffers merk. manually how to prepare ?
all types of questions asked at the cipla interview
What is the principle of Thermal conductivity detector and FID?
why does used dry caffien in HPLC calibration?