Description :

This model of HPLC gradient system is equipped with 2 sets of high-pressure constant-current pump and ultraviolet detector. Its microprocessor reciprocating plunger pump comes with functions such as high working pressure, low pulse rate. This gradient HPLC model meet the needs of conventional analysis to micro flow analysis.

Specifications :

High pressure pump	Two sets of pump
Flow rate range	0.001 - 9.999 mL / min (0.001 mL / min increments)
Pressure range	≤ 0.5 MPa (0 - 42 MPa)
Flow rate precision	RSD < 0.06 %
Pulsation	≤ 0.1 MPa (flow rate 1 ml / min, Pressure 5 - 10 MPa)
Qualitative analysis	RSD 6 ≤ 0.1 % (naphthalene methyl alcohol solvent)
Quantitative repeatability	RSD 6 ≤ 0.3 % (naphthalene methyl alcohol solvent)
Flow rate setting error	Ss ≤ 2 % (1 mL / min water, 5 - 10 MPa room temperature)
Air tightness of the pump	Pressure 42 MPa, 10 min time, Pressure drop < 0.5 MPa
Mixing accuracy	± 1 %
Mixing precision	± 0.2 %
Size (W × H × D)	450 × 300 × 160 mm
UV Detector	<table class="table table-striped table-bordered table-responsive"><tr><td><strong>Wavelength range</strong></td><td>190 - 680 nm</td></tr><tr><td><strong>Flow cell</strong></td><td>8 µL</td></tr><tr><td><strong>Spectrum band width</strong></td><td>8 nm</td></tr><tr><td><strong>Baseline noise</strong></td><td>≤ ± 0.25 × 10&lt;sup&gt;-5&lt;/sup&gt; AU (empty cell)</td></tr><tr><td><strong>Wavelength accuracy</strong></td><td>± 1 nm</td></tr><tr><td><strong>Baseline drift</strong></td><td>≤ ± 0.4 × 10&lt;sup&gt;-4&lt;/sup&gt; AU (empty cell)</td></tr><tr><td><strong>Wavelength precision</strong></td><td>&lt; 0.1 nm</td></tr><tr><td><strong>Limit of detection</strong></td><td>3 × 10&lt;sup&gt;-9&lt;/sup&gt; g / mL (naphthalene methyl alcohol solvent)</td></tr><tr><td><strong>Size (W × H × D)</strong></td><td>450 × 300 × 160 mm</td></tr></table>

Features :

• -  More precise optical system for the high precision and small offset
• -  Improved light energy through the parallel double cone flow cell
• -  Significant reduction in the static noise of the instrument and signal drift