TX 2000 is the state of the art laboratory spectrometer for quantitative multi element trace analysis using principles of Total Reflection X-Ray Fluorescence (TXRF).
TXRF, based on the same principles of traditional X-Ray Fluorescence (XRF), minimizes or totally eliminates matrix effect, allows simoultaneius multi-element ultra-trace analysis and pushes the instrumental detection limit down to ppb range from sodium to plutonium.
TX 2000, equipped with an automatic primary beam switching system (MoKa, WLa/Lb and bremsstrahlung 33 keV), a Silicon Drift Detector and an high power X-Ray Tube is the optimal solution for applications in environmental, chemicals and nuclear fields.
TX 2000 Main Features
- TXRF and EDXRF (traditional 45° geometry) spectroscopy in the same equipment.
- Stepper motors with optical encoders ensure extremely precise angular values.
- Automatic switching of primary beam (MoKa, WLa/Lb and bremsstrahlung 33 keV) using double anode Mo/W X-ray tube, based on innovative software. We select the energy required using an high reflectivity 80% (WLa/Lb/MoKa) multilayer. We can choose also other X-ray tubes and monochromatise the energy that you need.
- Peltier-cooled Silicon Drift Detector with an energy resolution of 124eV FWHM@MnKa (shaping time 1 ms)
- Minimal distance between the sample and the detector (mounted to the axis normal to the plane of the sample).
- Instrumental detection limits for more than 50 elements below 10 pg.
- Helium device to improve the detection limits for the light elements.
- Excellent detection limits (ppt) for a wide range element
- No matrix effect
Technical Data
X-Ray Generator | Maximum Output Power | 3 kW (option: 4 kW) | |
Output Stability | < 0.01 % (for 10% power supply fluctuation) | ||
Max Output Voltage | 60 kV | ||
Max Output Current | 60 mA (option: 80 mA) | ||
Voltage Step Width | 0.1 kV | ||
Current Step Width | 0.1 mA | ||
Ripple | 0.03% rms < 1kHz, 0.75% rms > 1kHz | ||
Preheat and Ramp | Automatic preheat and ramp control circuit | ||
Input Voltage | 220 Vac +/-10%, 50 or 60 Hz, single phase | ||
Size | Width 48.3 cm, height 13.3 cm, depth 56 cm | ||
X-Ray Tube | Type | Glass, Mo/W anode, long fine focus | |
Focus | 0.4 x 12 mm | ||
Max Output | 2.5 kW | ||
Multilayer monochromator | Type | Si/W | |
Reflectivity | 80% | ||
Automatic Sample | Sample seating | 12 for TXRF - 1 for EDXRF (45°) | |
Detector | Type | Peltier-cooled Silicon Drift Detector (SDD) | |
Active Area | 30 mm2 (10, 50 and 100 as options) | ||
Energy Resolution | Shaping Time 1 ms | ||
Preamplifer | Type | Pulsed-reset charge-preamplifer | |
Case | Dimensions | Width 550 mm, Heigh 1675 mm, Depth 805 mm | |
Leakage X-Rays | < 1 mSv/Year (full safety shielding according to the international guidelines) | ||
Processing Unit | Computer Type | Personal Computer | |
Items Controlled | X-Ray Generator, Tube Shield, Monochromator, Detector, Counting Chain | ||
Basic Data Processing | Multisample positioning | ||
Counter Chain parameter settings | |||
Selection of Radiation | |||
Centring procedure | |||
K. L & M markers | |||
Time or count selection | |||
Acquisition of data in both geometries (TXRF - EDXRF) | |||
Least Square Marquardt fit procedure for the area calculation | |||
Automatic / Manual search Function | |||
Automatic / Manual Calibration of Energy | |||
Quantification via an internal standard using theoretical and experimental sensitivity curves for total reflection |
Applications
- Environmental Analysis: water, dust, sediments, aerosol
- Medicine: toxic elements in biological fluids and tissue samples
- Forensic Science: analysis of extremely small sample quantities
- Pure chemicals: acids, bases, salts, solvents, water, ultrapure reagents
- Oils and greases: crude oil, essential oil, fuel oil
- Pigments: ink, oil paints, powder
- Semiconductor Industry: by VPD (vaporphase decomposition)
- Nuclear Industry: measurements of radioactive elements
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