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Instrument Database:
Hitachi - Science & Technology - LaChrom Elite L-2200 Autosampler
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| Year of introduction |
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| Status |
available |
| Company |
Hitachi - Science & Technology
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| Categories |
Automation: Autosampler (LC)
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- Direct injection for trace samples and fast measurements
The direct injection method is employed in which the sampling needle forms a part of the flow path at the time of sample injection. Since the amount of sample sucked in the needle can be introduced intact into the flow path, the minimum required volume of sample is as small as 7  L, which is particularly advantageous for measurements of rare samples in trace amounts. Unlike the conventional design of sample loop introduction, the direct injection provides a simple injection step. This reduces the cycle of injection to 1/2 in comparison with the conventional method, realizing higher-speed measurement for analyses of multiple samples.
- Reduction in carryover
The outside of the needle is washed before and after sample injection, thereby minimizing the degree of carryover.
- High-accuracy analyses owing to enhancement in reproducibility
A high-performance motor is employed for driving the syringe used for sample volume measurement. This enhances the reproducibility of sample injection volume. Moreover, the timing of sample injection is synchronized with that of pump drive for improvement in reproducibility of peak retention time. This feature ensures high reliability in analytical result data.
- Sample vial detection for safety during analyses
A sample vial detecting function is equipped so that air will not be introduced from a vacant sample position. This provides high reliability in autosampler operation.
- Various racks available for multiple-sample analyses
The standard rack can accommodate up to 200 1.5mL vials, and up to three micro plates (382 holes) can be mounted to enable measurements of up to 1152 samples at a time (option).
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| Specifications |
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| Carry over | 0.01% (< 0.003% with typical results) |
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| Injection method | Direct all injection |
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| Capacity | 200 vials (1.5 mL) |
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| Cooling options | 4 to 20 (at ambient) |
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| Rack options | 128 (4 mL), 336 (1 mL),
Microtiter rack (3 plates) |
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| Injection volume | 0.1 to 50 L (standard),
50 L to 4.5 mL (optional) |
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| Repeatability | 0.3% RSD (at 10 L injections) |
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| % RSD of slopes | Correlation coefficient > 0.999
Response factor < 5% RSD |
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| Max. # injections/vial | 99 |
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| Max. cycle time | 999.99 |
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| Min. cycle time | 30 s |
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| Syringe volumes | 0.100 mL (standard),
0.5, 1, 2.5, and 5 mL (optional) |
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| Safety | Built-in leak sensor |
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| Dimensions | 13.5 in (W) x 15.75 in (D) x 12.0 in (D)
(340 mm (W) x 400 mm (D) x300 mm (D)) |
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| Weight | approx. 42 lbs (19 kg) |
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