Agilent 1200 Series G4218A ELSD
3-12 month warranty
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The Agilent 1200 Evaporative Light Scattering Detector is designed to detect compounds in the eluent from high performance liquid chromatography, micro-HPLC, gel permeation chromatography (GPC) or counter current chromatography (CCC). It is capable of monitoring eluent flow rates from 5 μl/min to 5 ml/min. Evaporative light scattering detection is a universal technique which can detect any non-volatile analyte. Detection does not depend on the absorbtion of radiation and is not affected by the absorbtion characteristics of the solvent, thus solvents which absorb UV radiation can be used.
Specifications:
| Type | Specifications |
|---|---|
| Detection | High Sensitivity Photomultiplier |
| Light Source | Selected High Efficiency Blue LED |
| Temperature Range | Ambient to 100oC |
| Gas Flow Control | Manual and computer controlled nebulization gas flow and auxiliary gas flow. |
| Gas Consumption | Less than 4 l/min for the Large Flow Nebulizer, less than 3 l/min for all other nebulizers. |
| Gas pressure | 3.5bar (51psi) typical, min. 3bar (44psi) to max.
4.5bar (67psi) |
| Eluent Flow Rate | Micro Flow Nebulizer: 5 μl/min to 50 μl/min
Semi Micro Flow Nebulizer: 40 μl/min to 1 ml/min Standard Flow Nebulizer: 500 μl/min to 2 ml/min Large Flow Nebulizer: 1.5 to 5 ml/min Rapid Resolution Nebulizer: 0.2 to 1.4 ml/min |
| Instrument Control | Microprocessor with stand alone manual keypad or Windows based PC control (see specifications for your instrument control software) |
| Operating Parameters Control | Liquid Crystal Digital Panel |
| Signal Drift* | Less than 1 mV/h |
| Signal Noise* | <±1mV |
| Signal Output | 0-1000 mV (Analog)
RS-232 (Digital) |
| Inputs | Remote Autozero (Contact Closure or TTL Signal)
Remote Power down Mode (Contact Closure or TTL Signal) |
| Power Down Mode | General, Standby, Cleaning |
| Zero Control | Manual Auto Zero and Remote Auto Zero |
| Interface | RS-232 I/O Serial Output |
| Dimensions (WxHxD) | 250 mm x 450 mm x 550mm |
Conditions for drift and noise:
Eluent Flow: 0 ml/min
Evaporator Temperature: 50 °C
Nebulizer Gas: Nitrogen, pressure 3.5 bar
Gain: 12
Noise: measured as mean value for 10 segments of 1 minute. For each segment the difference of the highest minus the lowest peak is calculated and divided by 2.
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