X-ray fluorescence spectroscopy (XRF) analysis is a modern and universal analytical method for determining elements in various materials. Whether it is a bulk sample, a powder sample, or a liquid sample, almost all elements located between element number 11 (beryllium, Na) and 92 (uranium, U) on the periodic table can be accurately analyzed in terms of qualitative, quantitative, and non-standard sample analysis. Depending on different application requirements, the analysis concentration range can be from 0.1 ppm to 100%, and even elements with concentrations as high as 100% can be directly measured without the need for dilution. XRF analysis has the characteristics of simple sample preparation, wide element determination range, high determination accuracy, good reproducibility, fast measurement speed (30s - 900s), no environmental pollution, and no sample destruction.

Applications

The XRF method is widely applied in fields such as environmental protection, geology, minerals, metallurgy, cement, electronics, petrochemicals, polymers, food, medicine, and high-tech materials. It plays a crucial role in product research and development, process monitoring during production, and quality management.The specific application is as follows:

1.Electronic, plastic and metal materials: Various electronic components, hardware parts, plastic raw materials and products, circuit boards, etc.

2.Paper and paper raw materials: Paper raw materials, various types of paper, colorants, inks, etc.

3.Petroleum, coal: Petroleum, lubricants, heavy oil, polymer materials, coal, coke, etc.

4.Ceramics, cement: Ceramics, refractory materials, rocks, glass, cement, raw materials and clinker for cement, lime stone, kaolin, clay, etc.

5.Agriculture, food: soil, pesticide residues, fertilizers, plants, various foods, etc.

6.Non-ferrous metals: Copper alloys, aluminum alloys, lead alloys, zinc alloys, magnesium alloys, titanium alloys, precious metals, etc.

7.Steel: Pig iron, cast iron, stainless steel, low-alloy steel, high-alloy steel, special steel, ferroalloys, iron ore, slag, electroplating solution, casting sand, etc.

8.Chemical Industry: Inorganic and organic substances and their products, cosmetics, detergents, rubber, toner, catalysts, coatings, pigments, medicines, chemical fibers, etc.

9.Environment: Various waste materials, industrial waste, atmospheric dust, industrial wastewater, seawater, river water, etc.

10.Biological Sciences: Organisms, auxiliaries, etc.

Overall performance

1.Si(PIN) or SDD semiconductor refrigeration detector

The resolution of the detector is one of the main indicators for evaluating the performance of the energy dispersive X-ray fluorescence spectrometer.

Resolution < 145eV (The lower the resolution, the higher the sensitivity)

Count rate > 1000/s

Crystal area > 15 square millimeters

Be window thickness = 0.025mm

Detection power < 1.2W

2.Multi-channel pulse amplitude analyzer (commonly known as spectrum energy scale)

Channel count: 2048 channels

3.Power Controller

System power control: +5 VDC at 250 mA (1.2 W)

Constant cooling control 400 VDC

4.Low-power small side-window X-ray generator (commonly known as X-ray tube)

The X-ray tube with special internal lead embedding undergoes full-range shielding, with only the side window X-ray outlet area remaining. The insulating oil in the tank is used for high-voltage insulation and cooling. The standard window is 0.005 inches thick of beryllium, with a rated power of 50 watts and a rated voltage of 50 kilovolts. The designed service life is over 15,000 hours.

5.High-voltage generator

Input: 85~265Vac, 47~63Hz, Power Factor Correction.

The models ranging from 1kV to 5kV comply with the UL85 - 250Vac input standard.

Voltage fluctuation rate: From no load to full load, 0.01% of the output voltage

Current variation rate: 0 to rated voltage, 0.01% of output current

Waveform: 0.25% peak-to-peak of the output voltage

Temperature coefficient: Voltage or current setting, 0.01%/℃

Stability: After preheating for 30 minutes, 0.05%/8 hours

6.Automatic Filter Conversion System

Filter automatic switching system: 6 types of filters are automatically selected and switched (Filter function: Improves the spectral composition of the excitation source's spectral line, when conducting multi-element analysis, it is used to suppress the strong X-ray fluorescence of high-content components, thereby improving the measurement accuracy of the analyzable elements).

7. Safety radiation protection system

a. The redesigned low-radiation X-ray tube has undergone special treatment (starting from the source)

b. Fully enclosed lead plate double-layer radiation protection design (starting from the structural design)

c. Fully automatic lead plate filter screen automatic shielding device

d. The sample cover was accidentally opened, causing the X-ray forced interruption device to activate.

e. Delay Test and X-ray Warning System

8.Detection limit for the detection of the prohibited elements Cd, Pb, Cr, Hg and Br as stipulated in the ROHS directive

The detection limits for Cd, Pb, Cr, Hg and Br are 2 ppm.

9. Powerful analysis software workstation

a. A one-click operation software, easy to use and requiring no professional knowledge.

b. User-friendly human-machine interface.

c. All test parameters do not require setting by the operators. It has a powerful customizable report function.

d. Test data is automatically stored and has a historical query function.

e. The most advanced qualitative and quantitative analysis methods.

f. It can simultaneously analyze dozens of elements.

g. The elemental analysis is fast, and the analysis time can be adjusted from 30 seconds to 900 seconds.

h. When left idle for a long time, the tube pressure and flow will automatically be reduced, thereby extending the lifespan of the X-ray tube.

i. Control the temperature of the X-ray tube to protect it and extend its lifespan.

j. Real-time monitoring of the instrument's operating status, facilitating easy maintenance of the instrument.

k. To prevent accidental opening of the sample cover during the test, the software provides an operation warning and simultaneously shuts off the high-voltage power supply.