Shimadzu GC-2010 Plus User Manual

12 Injection Port
12.5
12.
122
GC-2010 Plus
12.5Split/Splitless Injection System
Q Split injection system
In a split injection system, only a portion of the sample injected into the injection port is
introduced into the capillary column. The remaining sample is sent to the split line due to
high sample volume. (Refer to “3.4 AFC and APC control”.)
Fig. 12.5.1
Q Splitless injection system
The splitless injection system is used to analyze samples of low concentration.
In a splitless injection system, the split vent is closed and the initial temperature of the column
oven is low. Then, after injection, and once the vaporized sample has moved to the column,
the split vent is open and the column temperature increased so that the condensed sample
inside the column is vaporized again and separated. (Refer to “3.4 AFC and APC control”.)
Fig. 12.5.2
Control
TFC
CARRIER
PURGE
PURGE VENT
SPLIT VENT
Control
Control
ESC
SPLIT
Capillary column
Control
TFC
CARRIER
PURGE
PURGE VENT
SPLIT VENT
Close
SPLIT
Capillary column
(a) During sampling time
Control
Control
TFC
CARRIER
PURGE
PURGE VENT
SPLIT VENT
Control
ESC
SPLIT
Capillary column
(b) After sampling time
Control

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