Answer / b.gangatharan

Impurities are unwanted chemicals that remain with the API or developed during formulation.
Thanks,
B.Gangatharan,
Caplin point laboratory,
Puducherry.

what is the importence and role of LCMS and LCMS/MS and their applications? which type of compounds are analysis by lcms?

1 Answers   GVK, Millennium,

---

Tell me something about Vitamin A test method by HPLC

0 Answers   Lupin,

---

How to prepare 1000ppm methylene blue solution

2 Answers  

---

What is vial equlibriation in Gc?

1 Answers  

---

Why use in sodium salicylate in uv lamps calibration

1 Answers   Auctus Pharma, Reddy Labs,

---

why holmium perchloate solution in Uv calibration

2 Answers   Alembic,

---

Basic principle of ESI?

0 Answers   Cipla, GVK,

---

why plane of polarized light rotated by opticaly active compunds?

1 Answers   Glenmark,

---

WHY POTASSIUM HYDROGEN PTHALATE IS USED FOR PERCHLORIC ACID? What is difference btw UV detector & RID detector? what is dissolution? What is unit of KF? what is the significant of pH in HPlc?

1 Answers  

---

How we develop a method by HPLC for unknown compound,if we got three peaks with same response then how we can find out which one is our desired compound's peak without taking help of LC MS.

4 Answers   Apotex, Kemwell,

---

what is the peak purity concept?

5 Answers   Graviti Pharmaceuticals, Vimta Labs,

---

How we can analysed unknown sample by hplc....

2 Answers   Archimedes,

---