Analytical HPLC-A7840 system with 0.001 to 9.999 ml / min flow rate range, offers three method measurement: dual wavelength detection, wavelength time program and stop pump scanning. Integrated with a single and dual wavelength UV-Vis detector with a range of 190 to 700 nm to analyse sample’s absorption at different wavelengths and high-pressure pump achieves accurate solvent delivery with high-precision and low-fluctuation.
Pump Specifications
Solvent delivery
Double plunger series mode, floating plunger design, single stroke volume 30 µl
Pump Head
10 ml stainless steel pump head
Flow rate range
0.001 to 9.999 ml / min
Flow rate increment
0.001 ml/min
Maximum pressure
42 MPa
Column size
4.6 × 250 mm 5 µm
Pipeline Size
1/16 inch
Flow rate accuracy
± 0.5 %
Flow rate precision
RSD ≤ 0.1%
Gradient accuracy %
± 0.5 %
Gradient repeatability %
RSD ≤ 0.15%
GLP
Automatic recording of pump sealing ring working time
Display
LCD backlight display
Power
80 W
Power supply
220 V ± 10%, 50 Hz
Dimension
398 × 149 × 267 mm
Detector Specifications
Wavelength range
190 to 700 nm
Wavelength accuracy
± 1 nm
Wavelength repeatability
0.2 nm
Deuterium lamp
190 to 400 nm
Tungsten lamp
400 to 700 nm
Baseline noise ( Static ) Au
1 × 10-5 AU/h at 254 nm with methanol/water= 80/20
Baseline drift ( Static ) Au / h
1.5 × 10-4 AU/h at 254 nm with methanol/ water= 80/20
Time constants
16 grades adjustable
Display
LCD backlight display
GLP
Total number of lights, lamp replacement time and product serial number
Power
75 W
Power supply
220 V ± 10%, 50 Hz
Dimension (L × W × H)
398 × 149 × 267 mm
Floating plunger support mechanism improve plunger and seal ring
Detector (Deuterium or tungsten lamp)
Simultaneous working of deuterium and tungsten lamp
Three method measurement: dual wavelength detection, wavelength time program and stop pump scanning
Independent mode all working parameter are set by panel button
External pump control by panel or computer software
Quaternary high pressure gradient support
Error alarm function for over pressure ,under pressure and leakage
Used in pharmaceutical analysis, food nutrient analysis of amino acids and sugars, detection of food contaminants, environmental pollutant and chemical product purity analysis.