L-2200 Autosampler

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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 µL, 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).

Specifications

Item L-2200 Autosampler Carry over 0.01% (< 0.003% with typical results) Injection method Direct all injection Capacity 200 vials (1.5 mL) Cooling options 4 to 20 (at ambient) Rack options 128 (4 mL), 336 (1 mL), Microtiter rack (3 plates) Injection volume 0.1 to 50 µL (standard), 50 µL to 4.5 mL (optional) Repeatability 0.3% RSD (at 10 µL injections) % RSD of slopes Correlation coefficient > 0.999 Response factor < 5% RSD Max. # injections/vial 99 Max. cycle time 999.99 Min. cycle time 30 s Syringe volumes 0.100 mL (standard), 0.5, 1, 2.5, and 5 mL (optional) Safety Built-in leak sensor 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)) Weight approx. 42 lbs (19 kg)