HPLC - UV/VIS Spectroscopy
Fiber Optic and Diode Array Applications
Software - Fluorescence
| Overview | Specifications | Ordering Information | Print Version | Documentation |
The K-2501 Detector is a programmable variable wavelength detector for HPLC and has been developed specially for use in routine analysis.Programmable Wavelength
The measuring wavelength is programmable and can be modified during a run. In "Stop Flow" mode spectra can also be acquired.
GLP Functions
The K-2501 Detector provides GLP functions such as: detailed reports, displaying the total hours of lamp operation, total number of lamp ignitions, and more.
Fiber-Optic Options
The use of fiber-optic guides permits the spacial separation of the K-2501 Detector and flow cell, which makes operation with externally thermostatted cells or in hazardous areas possible. Fiber-optic guides are available in standard or customised lengths.
Large Selection of Flow Cells
A large range of flow cells, from nano-HPLC cells for flowrates above 100 nL/minute to preparative cells for flowrates up to 10000 ml/minute, offers maximum flexibility and permits use of the K-2501 Detector for practically all HPLC applications.
Compact
The small footprint allows the K-2501 Detector to be installed practically anywhere.
Easily Integrated into Systems
The K-2501 Detector is of modular design, easy-to-use and easy-to-maintain, which allows it to be integrated easily into existing systems as a module.
| Wavelength range | 190 - 740 nm, 2nd order cut-off filter at 370 nm | |||
| Light source | Deuterium lamp as standard, optional Tungsten-Halogen lamp | |||
| Bandwidth | 8 nm | |||
| Wavelength accuracy | ± 2 nm | |||
| Measuring range | 0 – 2 AU | |||
| Baseline drift | < 1.5 x 10-4 AU/h at 254 nm, t = 1 sec. | |||
| Noise | < 1 x 10-5 AU at 254 nm, t = 1 sec. | |||
| Scan function | In "Stop Flow" mode only | |||
| Integrator output | ±1 V adjustable in 16 ranges | |||
| Data acquisition | Analogue via Integrator output | |||
| Display | LCD, 2 x 16 characters | |||
| Time constant | 0.1 – 10 Seconds adjustable in 7 ranges | |||
| Remote Control | 2 RS-232 interfaces, analogue inputs for program start and / or lamp off, output for errors, analogue control capability for wavelength and autozero (The pump can be controlled via Geminyx Software.) | |||
| GLP | Recording of total running time and number of lamp ignitions. | |||
| Features | Programmable in Stand-alone mode with storage of programs possible. | |||
| Dimensions | 106 x 185 x 340 mm (W x H x D) | |||
| Weight | 4 kg | |||
| All specifications may be subject to change for technical reasons. | ||||
| A4180 | WellChrom rapid scanning Spectralphotometer K-2501 without flow cell, with accessories for operation without fiber-optics |
| A4210 | WellChrom rapid scanning Spectralphotometer K-2501 without flow cell, with accessories for operation with fiber-optics |
| Analytical Flow Cells | |
| A4061 | 10 mm path, 1/16’’ connections, 10 µL, stainless steel, max. flow 20, max. pressure 300 bar |
| A4042 | 3 mm path, 1/16’’ connections, 2 µL, stainless steel, max. flow 50, max. pressure 300 bar |
| A4045 | 3 mm path, 1/16’’ connections, 2 µL, PEEK, max. flow 50, max. pressure 30 bar |
| Preparative Flow Cells | |
| A4066 | 0.5 / 1.25 / 2 mm path, 1/8’’ connections, stainless steel, max. flow 1000, max. pressure 200 bar(Cell volumes for adjustable cells are: 0.50 mm = 1.7 µL; 1.25 mm = 4.3 µL;2.00 mm = 6.8 µL.) |
| A4068 | 0.5 / 1.25 / 2 mm path, 1/4’’ connections, stainless steel, max. flow 10000, max. pressure 200 bar(Cell volumes for adjustable cells are: 0.50 mm = 1.7 µL; 1.25 mm = 4.3 µL;2.00 mm = 6.8 µL.) |
| A4067 | 0.5 / 1.25 / 2 mm path, 1/8’’ connections, PEEK, max. flow 1000, max. pressure 100 bar(Cell volumes for adjustable cells are: 0.50 mm = 1.7 µL; 1.25 mm = 4.3 µL;2.00 mm = 6.8 µL.) |
| A4069 | 0.5 mm path, 1/16’’ connections, stainless steel, max. flow 250, max. pressure 200 bar |
| A4095 | 0.5 mm path, 1/16’’ connections, PEEK, max. flow 250, max. pressure 100 bar |
| Analytical flow cells with double fiber optical connection | |
| A4074 | 10 mm path, 1/16’’ connections, 10 µL, stainless steel, max. flow 20, max. pressure 300 bar |
| A4044 | 3 mm path, 1/16’’ connections, 2 µL, stainless steel, max. flow 50, max. pressure 300 bar |
| A4047 | 3 mm path, 1/16’’ connections, 2 µL, PEEK, max. flow 50, max. pressure 30 bar |
| A4077 | 3 mm path, 1/16’’ connections, 0.7 µL, PEEK, max. flow 10, max. pressure 30 bar |
| Preparative flow cells with double fiber optical connection | |
| A4078 | 0.5 / 1.25 / 2 mm path, 1/8’’ connections, stainless steel, max. flow 1000, max. pressure 200 bar(Cell volumes for adjustable cells are: 0.50 mm = 1.7 µL; 1.25 mm = 4.3 µL;2.00 mm = 6.8 µL.) |
| A4079 | 0.5 / 1.25 / 2 mm path, 1/8’’ connections, PEEK, max. flow 1000, max. pressure 100 bar(Cell volumes for adjustable cells are: 0.50 mm = 1.7 µL; 1.25 mm = 4.3 µL;2.00 mm = 6.8 µL.) |
| A4081 | 0.5 / 1.25 / 2 mm path, 1/4’’ connections, stainless steel, max. flow 10000, max. pressure 200 bar(Cell volumes for adjustable cells are: 0.50 mm = 1.7 µL; 1.25 mm = 4.3 µL;2.00 mm = 6.8 µL.) |
| A4089 | 0.5 mm path, 1/16’’ connections, stainless steel, max. flow 250, max. pressure 200 bar |
| A4096 | 0.5 mm path, 1/16’’ connections, PEEK, max. flow 250, max. pressure 100 bar |
| U-Z ViewTM Micro Flow Cells (not available with fiber optics) | |
| A4091 | 8 mm path, 1/16’’ connections, 0.140 µL, fused silica, max. flow 0.1, max. pressure 500 bar |
| A4044 | 8 mm path, 1/16’’ connections, 0.035 µL, fused silica, max. flow 0.01, max. pressure 500 bar |
| A4047 | 8 mm path, 1/16’’ connections, 0.003 µL, fused silica, max. flow 0.001, max. pressure 500 bar |
| CE Cell (Capillary Electrophoresis) (not available with fiber optics) | |
| A4097 | 1 mm path, 1/16’’ connections, stainless steel |
| Spares and Accessories | |
| A0895 | RS232 cable for serial PC-interface |
| A4071-1 | Deuterium lamp (35W) |
| A4072 | Tungsten-Halogen lamp |
| A4073 | Tungsten-Halogen lamp with base (required for first time installation) |
| A0911 | Fiber-optic connector, length 400mm |
| A0742 | Fiber-optic connector, length 750mm |
| A0740 | Fiber-optic connectors, length 750mm, pack of 2 items |
| A0743 | Fiber-optic connector (individual length to be specified with order) |
| A0857 | Extension Kit for coupling of two fiber-optic connectors |
| A4126 | Test cell, holmium oxide filter for detectors without fiber-optics |
| A4128 | Test cell, holmium oxide filter for detectors with fiber-optics |
| A1447 | 1 lens, 1 seal for analytical flow cells |
| A1448 | 1 lens, 1 seal for preparative flow cells |
| A1449 | 1 lens, 1 seal for flow cells using fiber optics |
| A1131 | Repair kit for analytical flow cells, 10mm |
| A1475 | Repair kit for analytical flow cells, 3mm |
| A1132 | Repair kit for preparative flow cells |