Answer / manoj reddy

PDA monitors the absorbance over a wide range of wavelengths, while UV detector monitors the UV absorbance at a selected wavelength. The diode array element measures the intensity of light at each wavelength.

Why do we use KMnO4 in the test of control of obsorbance ? and why do we take specific quantity i.e 57-63mg?

0 Answers   Reddy Labs, Vimta Labs,

---

How can we calculate offset value pH measurment

0 Answers   Dr Reddys,

---

As per ICH related substances stability trend limit from initial to shelf life

0 Answers   Medley Pharmaceuticals, Micro Labs,

---

in hplc calibration injector linearity pass,it means inj and det is good. why to perform detector linearity is it required, if it is required,what is difference between injector and detector linearity in hplc calibration

4 Answers   Dr Reddys, Hetero,

---

difference between pH & pOH ?

4 Answers  

---

what is optical active and non active give examples?

1 Answers   GVK,

---

what is mass spectra ? why it is necessary ?

1 Answers  

---

What is polymorphism?which type of compounds exhibits polymorphism?

2 Answers   Torrent Pharma,

---

Wath is the differenc between two column HPLC wich have the samme support , lenth , pore size, etc.. But different name .for exemple : Spherisorb / lichrosorb

2 Answers   NDA,

---

What is the name of the detector used in TOC?

1 Answers   Lupin,

---

mahagenco syllabus for the post of chemist

0 Answers   MahaGenco, Unimarck Pharma,

---

why we are using in ph calibrations ph4,7,9.2 buuffers only?

3 Answers   Reddy Labs, Unichem,

---