Liquid chromatograph (ROHS2.0 detector)

Liquid chromatograph (ROHS2.0 detector)In this scheme, a high-performance LC-10Tvp gradient high performance liquid chromatograph was used to determine four EU controlled phthalates in the sample, namely: dibutyl benzyl phthalate (BBP), diisobutyl phthalate (DIBP), dibutyl phthalate (DBP), and di (2-ethylhexyl) phthalate (DEHP).

10T gradient high-performance liquid chromatography

ROHS2.0 detector 10T gradient high-performance liquid chromatography standard configuration
LC-10Tvp high-pressure constant current pump: 2 units
SPD-10Tvp UV detector: 1 unit
Solvent tray: 1 unit
8725i manual injection valve: 1 set
Mixer: 1 set
Chromatography workstation: 1 set, including PCI small card
Liquid chromatography column: 1 (C18 4.6 * 250mn, 5um)
Micro injector: 1 unit (50ul/100ul)
Injection bracket: 1 (for injection valve) (configuration may vary slightly according to customer requirements)

Liquid chromatograph (ROHS2.0 detector)Upgrade of appearance technology:
Changes in door opening design
More reasonable pipeline design
Cooling system upgrade
Replace tray design
Improved conductive silicone button design
Replace the instrument signal communication method

The application scope of ROHS2.0 detector high-performance liquid chromatography is increasingly expanding. Due to its use of non-destructive detectors, after the sample is analyzed, in most cases, the mobile phase can be removed, achieving the recovery of a small amount of precious samples, and can also be used for sample purification preparation.

1、 High separation efficiency:

Due to the use of new high-efficiency particulate stationary phase fillers, the write off of liquid chromatography packed columns can reach 5 × 10 3~3 × 10 4 plates/m theoretical tray number, which is much higher than the column efficiency of gas chromatography packed columns with 103 plates/m theoretical tray number.

2、 High selectivity

Due to the high column efficiency of liquid chromatography columns and the ability of the mobile phase to control and improve the selectivity of the separation process. Therefore, high-performance liquid chromatography can not only analyze different types of organic compounds and their isomers, but also analyze optically similar isomers in properties, and has played an important role in the production control analysis of highly effective synthetic drugs and sublimation drugs.

3、 High detection sensitivity

Most detectors used in high-performance liquid chromatography have high sensitivity. The widely used UV absorption detector has a small detection limit of up to 109g, while the fluorescence detector used for trace analysis has a small detection limit of up to 10-12 g.

4、 Fast analysis speed

Due to the use of high-pressure infusion pumps, the analysis time is greatly shortened compared to classical liquid chromatography. When the infusion pressure increases, the flow rate of the mobile phase will accelerate, and the analysis time of a sample can be completed in just a few minutes to tens of minutes.