which effect is mainly responsible for chromatographic separation when silica is the statinary phase at TLC? thanks in advance

what is different when impergnated silica plates are used in separation of azo dyes using column chromatography?

why in GC calibration of linearity regression coefficient should not be less than 0.999

Acacia, Jubilant,

why don't we call POH meter? As we all as PH meter

Aurobindo,

Why we are having specification 100% above in case of assay as there is only 100% of compound?

MSN Pharma, Nectar Lifesciences,

why we are taking 89ml concentrated HCL for preparing 1N HCL

Calculate the water content in Di Sodium Tartrate (DST) based on molecular weight?

What are the terms used during Melting Range Analysis ?

As per USP u/vacuum means (how much vacuum should be applied)?

Mylan,

what is difference between zero air gas and o2 gas

IPCA, Vasudha Pharma,

While performing TOC sst analysis Zero shift disabled & sample analysis zero shift enabled why?

which one is better separation in high pressure liquide chromatogram orlowpressure chromato gram in hplc

Hetero,

In which cases factor of KF Reaget got higher side

what is the concept for adjustment of pH in HPLC buffer solution ? a. Common ion effect b. Counter ion effect and explain me, how we adapt this principles & what is the role of these principles in our method

Apex, Pentagon Labs,

What is the difference between BD