Why is acetic acid added?

1115

1.What is the difference between method validation and method verification 2.Which guidelines proposed to method transfer

1812

Protactinium-231 emits alpha particles. How can this property be utilized in radiation detectors or other scientific instruments?

591

What are usp limits for theoritical plats,resoution,tailing factor,peak to valley ratio

1870

Ph meter can show more than 14 ph reading? Why ph range in between 1 to 14 only?

713

Which type of column should i use to check the purity of high molecular weight protein using HPLC reverse phase column chromatography? Hi everyone. I wanna to check the purity of high molecular weight protein (collagen) with MW of ~130 kDa using a HPLC. I know C18

1876

Why is ammonium hydroxide added to the brass solution?

1251

Head-to-tail polymerization of propylene is observed with the [cp2zr(r)]+ catalyst. Explain this result on the basis of molecular-level interactions. : Polymer Chemistry

992

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

2808

How is arsenic produced?

1025

what is the purpose of using cyclhexane in synthesis?

4210

how you determine moist.of NaOH sol or NaOH flacks

2192

What is wave number?

1085

What is modern definition(iupac) of ph?

1196

Protactinium is a rare and highly radioactive element. How is its radioactivity utilized in various scientific and industrial applications?

616