Answer Posted / kishanpal singh fare labs gurg

Primary standard :
the Primary standards are the NIST ,ISO ASC Standard
tracible materials
.This primary stadards
the solutions which are use for
the calibration of analytical instruments.
also used to standardization of std( Normal & Molar solution

Secondary standards:
are use to routine analysis known as
secondary standards for but Secondary standards are liquid
calibration of analytical instruments.
also used to standardization of std( Normal & Molar solution

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

737

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

2284

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what is mean by dissolution hydrodynamics?

773

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what is the principle involved in turbidometry and nephelometry ?

4109

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how you start the solubility study?

764

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What is the use of tlc and hplc? And when and where use?

1095

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Why irmoisture balance is used for corrugated box moisture testing

2353

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

3041

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which are the sizes of capsules?

885

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Why to use propyl paraben in HPLC gradient calibration

7314

---

Colorimtry

1617

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What are usp limits for theoritical plats,resoution,tailing factor,peak to valley ratio

1848

---

if content uniformity passing but dissolution varrying then what is next step?

813

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What is dose dumping? why require to do?

870

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cefoperozone and sulbactam inj. hplc test method

2640

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