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Capillary color atlas analyses the settlement of common problem
From;    Author:Stand originally

One, the peak is missing
Possible reason reachs what should use to eliminate a method
1. injector is amiss, with new injector test and verify.
2. did not receive detector, or detector is not effective, examine set cost
3. takes appearance temperature too low, check temperature, adjust according to need
Temperature of 4. post box is too low, check temperature, adjust according to need
5. flows without carrier gas, check pressure adjuster, examine leak, column of test and verify is entered taste velocity of flow
6. column ruptures, if column ruptures,be end or detector extreme are imported in column, it is OK remedial, cut column to rupture part, reinstall
2, forward position peak
1. column is overweighted, reduce the amount that take shape
2. two compound in all wash out, rise sensitivity and reduce the amount that take shape, make temperature reduces 10~20 to spend, in order to make a peak apart
3. sample condensation, the examination is mixed into appearance mouth column is lukewarm, if be necessary to be able to warm up
4. sample is decomposed, use break activation to take shape implement line canal or key are low into appearance implement temperature
3, peak pulling end
1. takes shape implement lining or sample of column adsorption active: Change lining. Be like insoluble problem, carry column pen of take out 1~2 into gas, reinstall again
2. column or take shape implement temperature is too low: Warm up (do not exceed column highest temperature) . Into appearance implement temperature should compare sample highest boiling point is 25 degrees high
3. two compound in all wash out: Heighten sensitivity, reduce the amount that take shape, make temperature reduces 10~20 to spend, in order to make a peak apart
4. column damages: Change column
5. column pollutes: From column the entrance carries pen of take out 1~2, reinstall again
Capillary analysis is common the settlement of the problem
4, have solvent peak only
1. injector is amiss: With new injector test and verify.
The carrier gas velocity of flow with incorrect 2. (too low) : Check velocity of flow, if be necessary, adjust
3. sample is too rare: Infuse is foregone sample in order to reach favorable result. If the result is very good, heighten sensitivity or increase infuse amount.
Temperature of 4. post box is exorbitant: Check temperature, adjust according to need
5. column cannot solve separate out constituent from inside solvent peak: Change column thicker coating or different polarity
Leak of 6. carrier gas: Examination leak is in (with suds)
7. sample by column or take shape implement lining is adsorptive: Change lining. Be like insoluble problem, carry pen of take out 1~2 from column entrance, reinstall
5, wide dissolvent peak
1. because column installation is improper, dead volume generates in the mouth that take shape: Reinstall column.
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