Shimadzu GC-2010 Plus User Manual

19 Troubleshooting
19.1 Troubleshooting
314
GC-2010 Plus
19.1.4 Chromatogram and data
19.1.4.1 No peaks or extremely small peaks
Peaks may not be able to be detected because of high noise.
Refer to 19.1.3.1.3 and 19.1.3.2.3, “baseline noise is high.”
FID detector
If the jet or the cable is damaged, contact your Simadzu repretetative for replacement.
TCD detector
Possible Cause Solution
Carrier gas is not flowing. Start carrier gas flow.
Carrier gas leaks. Tighten leaking connectors.
Split ratio is too high. (for split analysis). Reduce split ratio.
Sample concentration is low. Or injection volume is
too low.
Increase sample concentration or injection volume.
Wrong column is used.
Replace existing column with one appropriate for the
compounds analyzed (more polar, less polar, etc.)
Column temperature is too low. Increase column temperature.
Signal cable of detector is connected incorrectly. Connect signal cable correctly.
Detector is set to “Off”. Set detector to “On”.
Detector parameter have been is set incorrectly. Increase range and attenuation sensitivity.
Hydrogen flame is extinguished. Check hydrogen/air flow rate, then ignite.
Zero level far below “0”.
Press “MONIT” key then press “ZERO Adj” (PF
menu) to execute zero point adjustment.
Another analytical condition, such as temperature or
column flow rate is incorrect.
Change the analytical conditions.
Possible Cause Solution
Range is not “×1”. Set range to “×1”.
Current set value is too low.
Increase current setting.
(Decrease TCD thermostatic oven temperature, and
increase maximum working current.)
Makeup gas flow rate is too high.
Set it to the proper value.
He: Approx. 7.5 mL/min
N
2: Approx. 8.0 mL/min
Split ratio is too high (for split analysis). Decrease split ratio.
Carrier gas leaks.
Check for injection port and column connection
leaks. Tighten leaking connector.
Capillary column is installed incorrectly. Install column correctly.
Column is contaminated. Condition column.
Sample concentration is low. Or injection volulme is
too low.
Increase sample concentration or injection volume.
Wrong column is used.
Replace existing column with one appropriate for the
compounds analyzed (more polar, less polar, etc.)
Another analytical condition, such as temperature or
column flow rate is incorrect.
Change the analytical conditions.

Shimadzu GC-2010 Plus Specifications

General

Type	Gas Chromatograph
Model	GC-2010 Plus
Manufacturer	Shimadzu
Maximum Temperature Ramp Rate	120 °C/min
Detector Options	FID, TCD, ECD, FPD, NPD, MS
Electronic Flow Control (EFC)	Yes
Data Sampling Rate	Up to 250 Hz
Column Oven Temperature Range	Ambient +5°C to 450°C
Maximum Oven Heating Rate	120 °C/min
Injection Port	Split/Splitless, PTV
Display	LCD