injection volume accruacy test i calibration of hplc

Answer Posted / pratima bhandarkar

Connect union in to the HPLC.
Mobile phase: Methanol: Water (50:50)
Temperature : 25°C
Retention time :1min
Flow rate :0.5mL/min
Take one HPLC vial. Fill it with water. Weigh it (W1)
Make 6 injections with 50µl injection volume
Again weigh it (W2)
Mean volume = (W1-W2)/6*100 = µl

Limit = +-2% of the injection volume

Is This Answer Correct ?    8 Yes 3 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Why only hydroxy naphthol blue indicator is used for standardisation of 0.05M EDTA solution instead of solochrome Black T or Euriochrome Black T indicator which is used for all sample analysis with 0.05M EDTA solution?

2217


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


While performing TOC sst analysis Zero shift disabled & sample analysis zero shift enabled why?

2358


A ha tc is actual defination of retention time?

1067


What should be the level/ Percentage of Arsenic in Arsenic free zinc.

1765






AT WHAT CONDITIONS WILL YOU ANALYSE A SAMPLE,WHICH ARE PRESERVED AT OTHER THAN THE AMBIENT CONDITIONS?(ie COLD STORAGE SAMPLES BELOW 20* CENTIGRADE?

1607


what is the different in Total ash, sulphated ash, acid insoluble ash, alcoholic or non alcoholic ash?

9442


Ratio of Water and Acetonitrile(diluent) is not recommended to use in cleaning method validation,why?

2478


if your impurity coeluting with each other in that situation how require to set specification? is it acceptable?

372


what is mean by dissolution biowaiver study?

330


in each media we require to use SLS? how to proceed?

303


[3/30, 13:29] Manoj P Venkatpurwar: How hplc column selection according to structure? How mobile phase buffer selection on molecule structure?

316


why require the ph, buffer during hplc mobile phase?

409


How to fix the sample conc. in Related substances test by HPLC?

616


In HPLC Calibration, On which basis RSD Limit of noise test is fixed (NMT 33.0 % )

2962