Four element low-pressure constant current infusion pump

NegotiableUpdate on 03/14

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

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Overview

The QUAT-1OT four element low-pressure constant current infusion pump is the latest low-pressure constant current infusion pump independently developed by Saizhi Technology, which realizes full process reverse control of the VI2011 chromatographic workstation. More flexible and precise proportioning.

Product Details

QUAT-1OTvp Four element Low pressure Constant Current Pump:	1 unit
SPD-10Tvp UV detector:	1 unit
Liquid chromatography column:	1 piece (C18 4.6 * 250mn, 5um)
8725i manual injection valve:	1 can be optionally equipped with 7725i manual injection valve
Column temperature box:	1 unit
Tray:	1 piece
tool kit:	1 set
Chromatography workstation:	1 set (selected for VI2011 and VI2014)
Micro injector:	1 unit (50ul/100ul)
Injection bracket:	1 (for injection valve)

(The configuration may vary slightly according to customer needs)

Liquid phase detection application

High performance liquid chromatography HPLC detection scheme for doxycycline hydrochloride

-Sample processing procedure-

Accurately weigh an appropriate amount of doxycycline hydrochloride reference substance, add an appropriate amount of 0.01mol/L hydrochloric acid solution, dissolve by ultrasound, and dilute with 0.01mol/L hydrochloric acid solution to a solution containing approximately 1mg doxycycline hydrochloride per 1ml. Shake well, filter through a 0.45 µ m organic system filter membrane, accurately measure 20 µ L, inject into a liquid chromatograph, and record the chromatogram.

-Chromatographic conditions-

Chromatographic column: C18, 4.6 mm*250 mm， Particle size 5 µ m

Mobile phase: Acetonitrile: Acetate buffer solution=25:75

Wavelength: 280nm

Flow rate: 1.0mL/min

Instrument configuration: 点击图标.png Please click to view the image details

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1. Flexible selection of eluent: Four solvents can be freely switched and proportioned;

2. High speed proportional solenoid valve: programmatic control of various solvent ratios to make the ratio more accurate;

3. The solvent is degassed by an online vacuum degassing machine before mixing, so that the eluent enters the chromatography system without interference from bubbles;

4. Mixing solvents at room temperature and pressure: reduces the influence of solvent compressibility and completely eliminates thermodynamic volume changes caused by mixing, making the mixing ratio more accurate.