HitachiAmino acid analyzerTruly fully automatedAmino acid analyzer

HitachiAmino acid analyzerWith a history of over 40 years and more than 2000 users, our products are widely used in fields such as food, feed, pharmaceutical quality monitoring, biochemical research, and clinical testing. Hitachi Fully AutomaticAmino acid analyzerwith
Its significant features, multiple technologies, and reliable performance have long been recognized by users, with a market share of over 80% in the Chinese market. It can ensure retention time reproducibility, peak area reproducibility, and detection limit
Fully automated certificationAmino acid analyzer.

Main features:
New features of L-8900
The L-8900 integrates Hitachi's 40 years of expertise inAmino acid analyzerWith all the production experience and continuous innovation, the analysis technology of amino acids has reached new heights.
The L-8900 has made many beneficial improvements in the hardware of the instrument, thus better meeting the needs of applications.
1. Night leakage sensor, online degassing unit
L-8900 has newly added a night leak sensor and an online degassing unit. The degassing method in L-8800 is air trap, and the online degassing unit is a more efficient degassing method than air trap.
2. 6 types of buffer solutions
When the pump is stopped for a long time, the sixth buffer solution (distilled water) can be used to flush pump 1.
3. Higher temperature control: 85 ℃ (column temperature chamber), 140 ℃ (reaction unit)
Provided comprehensive conditions for optimizing amino acid separation and derivation.
4. Direct injection method
The direct injection method reduces the pulsation generated by the injection valve to 1/7 of L-8800 during injection, resulting in more accurate sample separation and quantification within five minutes after injection.
5. Automatic support function: N2 automatic inflation, N2 pressure control, reflux protection of ninhydrin
The automatic control function of N2 and the protection function of reaction solution have been added to L-8900, enhancing the control capability of the instrument. The automatic blowing of N2 is controlled by the switch of the solenoid valve.
6. Perform a self check on the energy of the tungsten lamp before measurement
The energy of the tungsten lamp can be observed at any time in L-8900, which complies with GLP regulations.

Technical parameters:
Hitachi Fully AutomaticAmino acid analyzerL-8900Amino acid analyzer
Instrument Description Instrument Description Instrument Label
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1. Performance (Taking protein hydrolysate standard analysis as an example, co sample 5 times)
1) Net analysis time is about 30 minutes
2) Retention time reproducibility CV0.3% (arginine)
3) Peak area reproducibility CV1.0% (glycine, histidine)
4) Detection limit of 3pmol (signal-to-noise ratio=2, aspartic acid)
2.Amino acid analyzerhost
1) Column size: 4.6mm ID × 60mm
Particle size: 3 μ m
Resin: Hitachi ion exchange resin
2) Infusion pump method: micro series double plunger reciprocating pump
Pressure: 0-20Mpa
Traffic: 0.000-0.999ml/min (incremental: 0.001ml/min)
3) Automatic sampler injection method: direct injection
Sample bottle volume: 1500 μ l
Sample bottle quantity: 200 (optional: with refrigeration device, 200)
Injection volume: 0.1-100 μ l
4) Column temperature box method: semiconductor cooling and heating
Temperature setting: 20-85 ℃ (increment: 1 ℃)
There are power-off and radiator overheating protection devices
5) Reaction unit method: reaction column
Size: 4.6mm ID x 40mm
Filling material: Diamond inert material
Temperature range: 50-140 ℃ (increment: 1 ℃)
There is an overheat power-off protection device
6) Visible photometer: monochromator: aberration eliminating concave diffraction grating
Wavelength: 570nm, 440nm (700nm reference)
3. Automatic support function:
1) N2 automatically inflates, 2) N2 pressure control, 3) Indene ketone reflux protection device
4. System management
1) 32-bit operating system, Windows XP
2) Display screen 17 '' (LCD optional)
5. Appearance dimensions (excluding computer) 900 × 650 × 1050mm (W × D × H)
6. Weight approximately 180 kilograms
7. Environmental temperature 15-35 ℃
8. Power supply 100-115V AC/220-240V AC, ≥ 800VA,W/in 50/60Hz ± 0.5Hz
9. Nitrogen users should bring their own