HPLC composition

High-pressure infusion pump

Function: drive the mobile phase and sample through the chromatographic separation column and detection system;

Performance requirements: flow stability (± 1), high pressure resistance (30 ~ 60Mpa), resistant to various mobile phases: for example: organic solvents, water and buffers;

Type: reciprocating pump and diaphragm pump.

Column

Function: Separation of various substances in the sample;

Size: 10~30cm long, 2~5mm inner diameter inner wall polished stainless steel tubing;

Packing particle size: 5 ~ 10μm, high-performance particle stationary phase;

Sampler

Function: Introduce the sample to be analyzed into the chromatographic system;

species:

1 Syringe, 10Mpa or less, 1 to 10μm micro-injector injection 2 Stop injection 3 valve injection, commonly used, ideal, variable volume, can be fixed 4 autosampler, is conducive to repeated operations, automation <br> <br> detector

Function: Convert the change of the concentration in the column effluent of the analyzed group into optical or electrical signals;

classification:

1 Refractive Index Detector 2 Ultraviolet Absorption Detector 3 Ultraviolet-Compatible with Spectrophotometric Detector 4 Diode Array UV Detector 5 Fluorescence Detector 6 Electrochemical Detector Fraction Collector Function: If the chromatographic separation is not performed purely Chromatographic analysis, but for identification of other spectra, or for small preparation of small sample quantities, fraction collection is necessary;

method:

1 manual, a few fractions, procedures troublesome, easy to go wrong.

2 Fraction collector collection, ideal, accurate computer control operation.

Data acquisition and processing system functions: Displays the signal detected by the detector.

Nanjing Kejie sells its instruments according to the relevant laws and regulations of the country, implements product repair, replacement, and return. The equipment and equipment are guaranteed for one year and life-long maintenance and maintenance. Free installation scheduling, training operators. Received a call from the user and responded in a timely manner. If necessary, solve problems in a timely manner.