Specifications

8
Autosamplers
The SIL-20A is a total-volume injection-type Autosampler that enables high-speed
injection and multi-sample processing. It was designed to ensure greater stability,
with improved durability attained through modifications in valves and sample loops.
SIL-20A / 20AHT
Supporting High-Throughput Analysis
The SIL-20AC is equipped with a sample cooler that incorporates a
dehumidifying function. Samples can be maintained at a fixed temperature in the
range of 4 to 40°C. The high cooling speed makes it possible to keep easily
decomposed sample constituents in a stable condition.
SIL-20AC / 20ACHT
Equipped with Cooling Function
Maximum 12 microplates can be set. The robot arm in the rack changer
automatically loads both micro-plates and racks for standard 1.5 mL vials into the
autosamplers. It is a powerful tool for the analysis of a large number of samples.
Rack Changer II
Supporting Multi-sample Processing
Easily adsorbed compounds
can be handled with the SIL-20A.
They are hardly detected at
all with a rinsing pump.
Not detected
Adsorption of sample constituents has been reduced to an
absolute minimum by using a special processing technology
for the sampling needle (patent pending) and rethinking the
structure of the needle seal and the materials used in flow-line
parts. As a result, there is hardly any sample carryover. Also,
the adoption of a PEEK rotor seal allows use over a wide pH
range, from strongly acidic conditions to strongly basic
conditions. Using the optional rinse kit (228-43042-91)
makes it possible to rinse the sampling needle with two
different solvents, selected in accordance with the purpose.
Cross-contamination Test for Chlorhexidine
Sample Carryover Reduced to an Absolute Minimum
1
2
5
10
20
50
100
0.43
0.25
0.06
0.04
0.03
0.10
0.11
Precise Sample Injection
Greater accuracy has been attained by incorporating a
high-performance sampling device that can measure out the
samples with high precision. The design reflects an emphasis
on basic performance as well as functionality. Also, using
direct injection means valuable samples are not wasted.
Injection volume (µL) Area reproducibility (%RSD)
Injection-Volume Precision
1
2
5
10
20
50
100
0.99
1.99
5.01
10.00
19.92
49.90
99.70
Set value (µL) Measured value (µL)
Injection-Volume Accuracy
Only 10 seconds* are required for sample injection.
High-speed vertical motion of the needle enables
ultra-high-speed sample processing, which was considered
impossible with conventional autosamplers. Using in
combination with a high-speed separation column makes an
analysis cycle of less than one minute a reality.
High Throughput
*Specified condition