Answer Posted / tushar

Reference std is like USP,EP std , in this std we get COA
including results of Potency by HPLC , NMR & XRPD data.
whenever there is requirement of w.std preparation first we
have get API rawmaterial from warehouse & we check assay ,
water content or LOD & Related substances aganist reference
std . Some times we are doing analysis in duplicate & get
mean value.then we decide final assay or potency value &
it's validity one year

What is diffrence between extractable volume and deliverable volume? Answer pls

4579

---

What is split ratio in Gc? Splitless? how requirr to select?

894

---

in stress study if your api not soluble in hcl naoh h2o2 then what require to do?

844

---

how to select short coloum and long coloumn for new molecule

2453

---

which are the diffrent batches in the pharmaceuticals?

820

---

for heavy metal test lead used in which form pure form or any other form for preparation of lead standard sol

6073

---

What is similarity factor?

1211

---

in monograph 7 imp are there but in vendor showing 5 imp do not req to include 2 imp for that what will be justification?

725

---

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

2874

---

why sre you used Potassium hydrogen phthalate in standarisation of 1N NaOH and 0.1 N Perchloric Acid?

9805

---

what is the acceptance criteria for enteric coated tablets in 0.1n hcl validation in each parameter?

895

---

What is the diference between residual solvents and organic volatile matter

2059

---

what are the guidelines for analytical method validations?

1107

---

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?

8868

---

if content uniformity passing but dissolution varrying then what is next step?

885

---