The Amino Acid Analyzer S 433 belongs to a new generation of instruments for the determination of Amino Acids according to the well known reliable Ninhydrin post-column derivatisation method.
This Amino Acid Analyzer is especially designed for the routine analysis of physiological fluids (serum and urine) and hydrolysate. It can be either controlled completely with the help of a computer or works as stand-alone system. With old fashioned step-elution systems, 4 and/or 5 buffer solutions were needed. Now, due to the optimized buffer system, only 2 buffers for hydrolysates and 3 for the physiological samples are necessary. The buffer can be adjusted individually to the samples by varying the mixture of the buffer. The system S 433 includes an autosampler with cooled sample storage and partial loop fill technique without sample loss as well as a 2 plunger buffer pump, a dual beam photometer, a cloumn oven with active cooling capabilities, a ninhydrine pump, a four channel degasser and a refrigerated reagent organizer with integrated inert gas application system.
for storing all reagents and washing solutions.
- front side operated
- special valves for applying inert gas for oxygen-free storage
for automatic injection of samples. All parts which come in contact with liquids are metalfee and biocompatible (PEEK and PTFE).
- sampling system operating in x, y, z axis
- variable sample dosage without any sample loss
- loop overfill mode
- reproducibility less than 1% upon injection of 10µl variable volume
- memory effect less than 0.01% depending on the selected washing procedure
- large graphical display and keyboard for easy control programming
- injection volume programmable in 1 µl increments (depending on metering device)
- temperature controlled sample compartement (5 - 75°C)
- programmable washing procedure with selectable volumes
- programmable port for purging
- free programmable sample sequences
Quaternary pump for the reliable and reproducable preparation of the buffer solutions. All parts in contact with the buffers are metalfree (PEEK or PTFE).
- dual plunger pump with special design for low pulsation (lass than 1%)
- flow range depending on installed pump head (0.01 to 9.99 ml/min)
- pressure selectable up to 400 bar (6000 PSI)
- battery buffered programs stored for the amino acid determination (hydrolysate and physiological fluids)
- graphic display of profile for buffer A, B, C and D
- programmable mixing cycle for the buffer solution
- integrated 4-channel vacuum degasser
- programmable flushing procedure
- extended diagnostic features (e.g. high pressure control, low pressure control)
