Answer Posted / anish srivastava

quantity 'Q' is the amount of dissolved active ingredient
specified in the monograph. Required to be released in the
stated time, expressed as a percentage of labelled strength,
then the batch of the tablet or capsules is acceptable, if
each unit is not less than Q + 5 %.

My question about gas chromatography sulfur chemiluminsecence detector. I test unknown sample gas by GC-SCD (calibrated ) and the result of *H2S is 279 PPM , *but when I test the same sample with the GC-TCD (calibrated ) the value of *H2S is 2500 PPM . I'd like to inform you that both GCs are calibrated and have very good operation conditions with stable parameters . the question is if the sample gas with higher H2S over detection limits of SCD detector (1000 ppm). why the result it 279 ppm Best regards

1119

---

pharma industries oriented

1692

---

In HPLC calibration, caffeine is used as primary standard for wave length calibration due to caffeine is having dual maxima at 273 & 205 nm and one minima at 245 nm. Any body can give reference of these details from any pharmacopeia (with chapter no.) or any other authentic guideline?

1463

---

Why sometime potassium ortho phosphate mix with acetone use for sample preparation for hplc

991

---

what is the structure of DOWEX-50

4931

---

---

if tech transfer fails whay require to do?

339

---

Principle of single pan analytical balance

4608

---

How to start the dissolution development for unknown tab?

1152

---

how to develop the icp ms method? Application of icp ms?

323

---

WHAT IS THE USE OF STARTER ?????????

1915

---

why we use a particular hplc column for a particular compound give reasons?please

2273

---

Tell me about analytical method validation in QC

5564

---

on saturation solubility study data how we can find out the bcs class of drug?

369

---

What are the primary considerations in extractables and Leachables ?

1790

---

What is control room temperature and which guide line says?

1162

---