• Heavy metal content tester System 1
Heavy metal content tester

Heavy metal content tester

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Heavy metal content tester

Total reflection X-ray fluorescence works (TXRF)

Principle of X-ray fluorescence spectrometry (XRF): the atomic level by the original X-ray excitation, the issue of secondary X-ray fluorescence. Therefore, XRF analysis can:

According to the fluorescence wavelength and energy, to determine the element;

The concentration of each element can be calculated based on the intensity of fluorescence.


X-rays by a Mo target or W target produced in Ni / C multilayer film reflective artificial and monochromatic. Flat beam with a very small angle (0.3 - 0.6 °) grazing the sample holder containing the sample, and total reflection occurs. Characteristic fluorescence generated by the sample is energy dispersive detector (XFlash® detector) to detect, by coupling the strength of a multichannel analyzer measurement.


The biggest difference conventional XRF, total reflection fluorescence (TXRF) is the use of monochromatic light and the total reflection optical member. In the total reflection beam irradiated samples, reducing the absorption, and the sample and light scattering substrate materials. The result is greatly reduced background noise, and therefore there is a much higher sensitivity and significantly reducing the matrix effect.


Total internal reflection fluorescence (TXRF) The main advantage is that, compared to other atomic spectroscopy methods such as AAS or ICP-OES, no memory effect.


Total reflection fluorescence analysis, the sample can be prepared in a total reflection X-ray sample holder. Therefore, the sample holder diameter 30mm, typically of acrylic material or quartz glass.


Liquid sample directly onto the sample holder, typically using a micropipette transfer pipette a few microliters (μl) of test solution to the sample holder. Then evaporated and dried in an oven or a desiccator.


Solid sample, different sample preparation methods. Powder samples (suspended matter, soil, minerals, metals, pigments, biological samples, etc.) can be placed directly on the sample holder with the sample measured directly. A typical approach is to use a spoon or airlaid transfer several micrograms (μg) of the sample to the sample holder.


Single small sample (particles, slivers, etc.) can also be prepared directly by methods analogous sample.


In addition, the powder sample may be a volatile solvent such as acetone or methanol to prepare a suspension, suspension was pipetted into a sample holder, microwave digestion methods may also be used.

Main features:



Main technical characteristics

Available for solids, powders, liquids, suspensions, filter material, airborne particulates, such as film samples for qualitative and quantitative analysis of a range of elements 13Al-92U, content range ppb to 100%, the detection limit to 2pg.

Require less sample, less than 10 micrograms of suspended solids in liquids and 1-50 microliters of sample powder samples.

Unique portable total reflection fluorescence analyzer, equipment compact, integrated design, without any auxiliary equipment and gas, liquid nitrogen, etc., can get a site analysis.

1 and 25 automatic injector two designs were applied to a fully automatic analysis of small samples and large numbers of samples per day.

XFlash®SDD fourth generation silicon drift detector, using a Peltier cooling technology, no nitrogen, no consumption. Resolution better than 160eV at MnKa 100Kcps.

Due to the total reflection no background fluorescence intensity is directly proportional to the element content. Factories have been calibrated standard curve, users do not need standard quantitative analysis can be carried out.

Applications: water, wastewater, soil pollution elements; food, medicine, forensic, environmental protection, ceramics, cement, building materials, geology; blood, urine, tissue toxic elements.


Q:Is the Zibo analytical instrument expensive?
Boshan Zibo Sea Branch instrument factory, the quality is excellent, the price is preferential, the after-sale service is perfect, the casting material model is complete. You need the analysis instrument of friends, if you do not find suitable for the factory, you can contact the first time - Shandong city of Zibo province Zhong Lin Road No. 207, by professional and technical personnel of a set of solutions to meet your actual situation of you.
Q:How about the analytical instruments produced by Dalian far Dongxing?
Dalian far Dongxing Instrument Co., Ltd. is a professional manufacturer of analytical instruments and equipment. It also provides technical training for customers, laboratory design and laboratory equipment matching and so on. Enterprises have an annual output value of 1500~1800 million capacity.The purpose of business is: "quality first, service first", has passed the China Petroleum Institute, Chinese petroleum chemical technology assembly center quality management assessment in early 1999 Dalian far Dongxing Instrument Co. ltd.. And in 2002 February, through the IS9001:2000 version of the international quality management system certification.
Q:Laboratory equipment during the test
Verification is a verification, and period verification is a period check. The general requirements for laboratory ability shall be subject to the period verification during the 1 test cycles, that is to say, verification must be carried out, but also to be checked during the period.
Q:What is coal quality industrial analyzer, coal quality industrial analyzer, which are the main indicators of coal?
Coal industry analysis includes four indexes: moisture, ash, volatile matter, fixed carbon (calculated), industrial analyzer is used to determine the above industrial analysis indicators of the instrument. The analysis of the traditional industry mainly by muffle oven + "mode determination, relatively speaking, the analysis of low efficiency, more human disturbance; in 2000, began to appear on the market of industrial automation analyzer (represented by the Polytron Technologies Inc, Hunan Sande SDTGA2000) at present, automatic industrial analyzer after more than ten years of development, has been upgrading several times, widely used in the market, and for electricity, coal industry standards and national accreditation standards.
Q:What are the chemical analysis instruments?
Chemical reagents, scales and some glassware are used for the determination.
Q:What is the difference between modern instrumental analysis and chemical analysis methods?
The function of the instrument to replace some artificial action, five concept identification and human, to speed up the progress of the analysis, to reduce the number of human errors; but if the principle is the use of new technology to achieve detection, then the determination object may be different, the determination of some heavy metals such as traditional chemical methods, may require chemical titration reaction each other through a variety of substances to judge analysis, a large number of samples needed before processing can be realized, but modern spectral instruments can realize nondestructive testing, do not need to complete the reaction through the middle to qualitative or quantitative, also do not need to sample pretreatment.
Q:I would like to ask you prawns, domestic coal quality analysis instruments, coal testing equipment, well-known brands which?
Hebi Huanuo, can look at the Internet search, information security products, customer service service is very good
Q:How to select and analyze the elements in iron and steel?
Need analysis of multi elements in iron and steel, using HXS series instrument, HXS-3A type and HXS-3AD type microcomputer analyzer computer multi element analyzer, the instrument can analyze all the conventional elements of high manganese steel, the instrument includes computer and electronic balance, higher price.
Q:Why can't the food quality be determined simply by the result of chemical analysis or instrumental analysis?
Yes, the food quality standards are now mostly measured by chemical analysis or instrumental analysis.
Q:What are the differences between the infrared carbon sulfur analyzer and the high speed carbon sulfur analyzer?
Test system is not the same, the similarities are: high frequency combustion furnace, different places are, one is infrared detection, and one is the conductivity system testing

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