Answer / raj rana

Because it give sharp peak in UV range of 200 to 400 nm .ie 215,257,313,350.
And because of it photochemical stability on prolonged exposer to UV light it
absorbance own not changed.ani it is highly colour producing agent .

why we use only six bowls for dissolution of a drug

1 Answers   Cipla, Natco, TelePerformance,

---

why you require QA approval & what is its importance?

2 Answers  

---

for which type of applications gas chromatography is used?

2 Answers  

---

why equlirium conatant of water have 14 value

1 Answers   GVK Biosciences,

---

from compund pka value how to select buffer and column?

2 Answers   Emcure, Zydus Cadila,

---

What is polymorphism?which type of compounds exhibits polymorphism?

2 Answers   Torrent Pharma,

---

What is difference between Chromatographic purity and Related substances analysis?

3 Answers  

---

Shall i use a same hplc column for two different products.?

3 Answers  

---

my name is santhosh i cmpleted b.pharmacy in 2009 then i went to uk in 2010 to pg diploma business management. after i came back to india.. recently again apply to uk for pharmaceutical analysis. they refused my visa you failed to explain y u r change subject. so plz ineed answer for y change the cource

1 Answers  

---

In standard weight box used for calibration of analytical balance there are two numbers (Qty) of 20mg, 200mg,2.oGM weights. Why?

2 Answers   Orchid,

---

From where 16 or 5.545 is derived in theoretical plates calculation formula by USP or JP/BP/DAB and what is meaning of this coefficient and impact in calculation ?

2 Answers   Nectar Lifesciences,

---

if the flow rate is increases then any changes in retention time in hplc

1 Answers  

---