How can we Qualify a unknown impurity by HPLC

3 Answers  

---

In UV we measure absorbance , how it is happend ? explain me

4 Answers  

---

Why do we use 500ppb sucrose and 500ppb 1,4 benzoquinone in TOC calibration?

1 Answers  

---

What is Temperature ?

2 Answers   Reddy Labs,

---

How to prepare 50 ppm ammonia solution form 25% ammonia solution?

8 Answers   Cadila, IIT,

---

how many types oos and oot

1 Answers  

---

what is mean by least count balance?

1 Answers  

---

1 why polyesterene film used for ftir calibration ? 2 why k2cr2o7 is used for control of abs in uv ? 3 why holmium oxide used for control of wavelength in uv

3 Answers  

---

wat is the role of michelson interferometer in FTIR and He-Ne lase.detailed answer required in simple language

1 Answers   Police Constable,

---

WHAT IS THE CRITERIA FOR SELECTION OF TIME OF DISSOLUTION AND THE MEDIUM OF DISSOLUTION?

0 Answers   GVK,

---

Explain about empower software of analysing?

1 Answers   DRL,

---

Is it necessary to validate both assay and related substances for usp official methods for products.

6 Answers   Apotex,

---