Answer / padma

It gives a multiwavelength response with Maxima at 205nm and 273nm and minima at 245nm ,it is stable for long time and easily avialable in market and cheap.It is specially for wave length accuracy since it will scan the whole range of UV

Answer / venkatesh

Caffeine is thermally stable natural product, Detects on
multi wavelengths like 273,254,etc.. and also not degradable.-

why the ph scale range is 1 t0 14 and why not beyond 14 and not to below 1?

5 Answers   Avra, Granules, Orchid,

---

In GC Why does retention time decrease when temperature increases? Also how does a change in temperature effect selectivity?

1 Answers   Gland Pharma,

---

wen v have polr solvent then which type of column use in hplc

2 Answers  

---

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

2 Answers   Archimedes,

---

why we want incorporate area of each solution of Intermediate precision and repeatability as well as Accuracy ? What is the use to incorporate area of each solution of Intermediate precision and repeatability as well as Accuracy ?

1 Answers  

---

in determination of(acetone) moister content we are using methanol replaced by pyredine.what hapend in that reaction.

2 Answers   Glenmark, Neuland,

---

what buffer you can select for acidic nature analyte and how ?

2 Answers   Dr Reddys,

---

Why we use 100 RPM in friability test

1 Answers   IPCA,

---

calibrtion procedue of LC-MS

0 Answers   GVK, Matrix,

---

in loss on drying Why follows on constant weight not more than 0.5 mg, any region

1 Answers   Biocon,

---

Why a1% value is used for some product ? What is the criteria for selection a1% value ?

0 Answers   Zim Laboratories,

---

what does pH stand for?

4 Answers   Orchid,

---