- Amino acid analyzer
ARACUS classic Amino Acid Analyzer
Standard configuration with 2 photometer LEDs
Detectors with maintenance-free LED technology
Chloride-free and citrate-free buffer system
Small eluent consumption
Pump allows the simultaneous operation of two fluidic lines
Continous analysis of 96 samples in a cooled autosampler
High sensitivity of amino acids
OVERVIEW
Amino Acid Analysis for a wide range of applications
- The setup of the ARACUS „classic“ is the standard configuration of the analyzer series.
- The ARACUS „classic“ allows the continous analysis of 96 samples in a cooled autosampler.
- Eluents and reagent solution are selectively chosen through valves and are ideally mixed to each other.
- The addition of ninhydrin provides a quantitative analysis statement.
- A washing routine of the injection valve and syringe pump avoids cross contaminations.
- The level of the individual reagents can be monitored during the runs and warns the user if the quantity is no longer sufficient.

Main technical specifications of the system
- Method
- Post column derivatization with ninhydrin
- Reproducibility of retention time & area
- < 0.3 % RSD
- ca. 1 % RSD
- Detection limit
- < 2 nmol/mL
Flowchart
The chart shows the structure of the classic setup:
- The pump allows the simultaneous operation of two fluidic lines (eluent side and reactive side), which guarantees a constant mixing.
- The ARACUS “classic” has two photometers, 440 nm and 570 nm.
- The system is equipped with an autosampler with 100 µL loop.



