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What is the difference between the optics of UV and PDA
Detectors ?
- 3 Answers
- 15233 Views
- Emmennar, Neuland, I also Faced
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Answers were Sorted based on User's Feedback
Answer / s.goutham
Pda detecetors gives 3D out put [time constant ,wavlength
chnge], uv detecetor gives normal output [wavelength
constant ,time changes]
| Is This Answer Correct ? | 11 Yes | 2 No |
Answer / rajesh.n
PDA detector scans from 190-400 wavelength and and uv scans
only specific wavelengths
rajesh.n cosmic
| Is This Answer Correct ? | 5 Yes | 5 No |
Answer / venky
Pda scan at a time 190 to upto 800 and gives 3D , Uv only scanning specific wavelength, Dual wavelength scan at a time but no 3 D
| Is This Answer Correct ? | 0 Yes | 0 No |
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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
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