Interested to Buy Any Domain ? << Click Here >> for more details...
In GC, What does 'Column condensation test' mean by?
- 2 Answers
- 11551 Views
- Reddy Labs, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / sri krishna
Condensation Test
Use this test whenever injector or carrier gas contamination
problems are suspected (e.g., ghost peaks or erratic baselines).
* Leave the GC at 40-50�C for 8 or more hours.
* Run a blank analysis (i.e., start the GC, but with no
injection) using the normal temperature conditions and
instrument settings.
* Collect the chromatogram for this blank run.
* Immediately repeat the blank run as soon as the first
one is completed. Do not allow more than 5 minutes to elapse
before starting the second blank run.
* Collect the chromatogram for the second blank run and
compare it to the first chromatogram.
* If the FIRST chromatogram contains a substantially
larger amount of peaks and baseline instability, then that
is an indication that there is contamination upstream of the
capillary column (ie. contaminated inlet, dirty carrier gas,
etc.).
* If BOTH chromatograms contain few peaks or very little
baseline drift, it can be assumed that the carrier gas
and/or inlet are relatively clean.
* If BOTH chromatograms contain a significant amount of
noise and/or baseline drift, then that usually is an
indication that the detector or detector gases are contaminated.
| Is This Answer Correct ? | 8 Yes | 1 No |
Answer / guest
retention time per puss we r using mobile phase ph
| Is This Answer Correct ? | 0 Yes | 0 No |
why digestion require in icpms?
In Force degradation Study Compound is not degrade in any condition , also in higher stress what can i do ?
what is mean by content uniformity?
What is NPOC method in TOC?
How to establish pKa for a new API molecule ?
2 Answers Neuland, Sun Pharma,
what is lod and loq
what is hold time in Gc?
What is stray light in uv what are units for stray light
When performing Moisture content how to you say only Methanol react with water not product Explain?
What is principle of Polarimeter?
We use Potassium Dichromate solution for the calibration of UV-Visible Spectrophotometer in UV region. My question is to calibrate visible region which solution could be used in photometric accuracy
what is %labelled amount in content uniformity of dosage unit and its calculation?
Organic Chemistry 
