Detail Amino Acid Analyzer LAAA-A12
Testing Instrument
Amino Acid Analyzer LAAA-A12 is an automatic unit comprised with host and post-column derivatization system, is divided into hydrolyzed protein analysis system (sodium salt) and physiological body fluid analysis system (lithium salt). Features autosampler with built-in ammonia removal system, offers loop sampling and variable sampling modes with 1 to 500 µl of injection volume, and UV detector with aberration concave diffraction grating spectroscopy and 190 to 800 nm of detection wavelength. Designed with Quaternary low-pressure gradient pump with 0.001to 10 ml/min of flow rate and built-in 4-channel online vacuum degassing machine, and chromatography workstation, has ninhydrin post-column derivatization method with RT to 150°C of temperature range and gradient heating program.
Quaternary low-pressure gradient pump
Pulsation
<1% or 0.1 MPa
Flow rate
0.001 to 10 ml/min
Flow accuracy
± 0.2%
Gradient accuracy
≤ 0.06% (ASTM)
Max. withstand voltage
9000 Psi
Degassing machine
Built-in four-channel online vacuum degassing machine
Other function
Automatic cleaning of plunger rod, anti-salt precipitation
Auto sampler
Sampling method
Loop sampling and variable sampling
Injection volume
1 to 500 µl
Reproducibility
<1% @10 µl
Memory effect
< 0.01%
Sample tray
2 with 48 sample positions each, 1.5 ml sample bottle
Separation unit
Chromatographic column
Sodium ion exchange column; 4×150 mm
Derivative unit
Derivation method
Ninhydrin post-column derivatization method
Temperature setting
RT to 150°C
Temperature increment
0.1°C
UV detector
Spectroscopy system
Aberration concave diffraction grating spectroscopy
Wavelength range
190 to 800 nm
Working environment
10 to 30°C
Relative humidity
≤ 80% RH
Power supply
AC 220 ±10%, 50 Hz
Power
5 kW
