Answer Posted / prabhu

Hi dear the calibration is also one of the system
suitability test,whether the system working satisfactory or
not physically so when you do the calibration for pH meter
with standard pH buffer solution (which is from NIST-it may
accurate solution for actual pH)and once if your instrument
has calibrated,you can cross verify your insrument against
those pH buffer solution (NIST) and the acceptable range is
+/- 0.02 then you can conclude for ?

once if temperature raises the pH will decrease and its not
all cases

what is mean by dissolution biowaiver study?

330

---

Ph meter can show more than 14 ph reading? Why ph range in between 1 to 14 only?

308

---

all types of questions asked at the cipla interview

4139

---

What is the purpose of octyl silane columns?

3795

---

what is mean by nitrosamine impurities?

546

---

---

what is definition of validation? which components are followed give detail?

1832

---

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?

1462

---

What is a difference between potency and purity?

647

---

Principle of single pan analytical balance

4606

---

What is the difference between chromatographic purity and related substances?

794

---

In Dissolution Test why limit is define Q+5% what is the role of +5%.

2580

---

For limit test of heavy metals in BP, Method C require that the substance is ignited at a temperature not exceeding 800 °C. Why confines such the temperature?

3500

---

What if impurity area in control sample coming more as compared to LOQ level of impurity ?

1148

---

what you do when compound having dwel wavelength?

285

---

What is the formula for relative diffrence for standard solution in solution stability in validation?

312

---