EDXpertTM portable XRF analyzer
Portable heavy metal detectors, with the development of social economy, the environmental risks caused by various human activities are constantly increasing, and heavy metal environmental pollution incidents are becoming more and more serious.
At present, the national standard method for soil heavy metal analysis requires wet digestion of samples, which is cumbersome and time-consuming, and requires the use of a large amount of chemical reagents such as nitric acid and perchloric acid,
It is highly likely to cause secondary pollution to the environment and harm experimental personnel, and the testing and analysis time on the machine is relatively long.


Definition of Soil Environmental Quality
Specific types of soil have the ability to maintain the production capacity of animals and plants within the boundaries of natural or agricultural ecosystems, maintain or improve the quality of the atmosphere and water, as well as human health and habitat,
It is a comprehensive measure of soil's ability to maintain productivity, purify the environment, and ensure the health of animals and plants. Modern soil quality mainly includes three aspects:
1. The ability of soil to provide plant nutrients and produce biomass is fundamental to ensuring food production;
2. The ability of soil to contain, absorb, and degrade various environmental pollutants is its ability to regulate the quality of water vapor in the environment to promote healthy growth of humans and animals;
3. The ability of soil to produce safe and nutritious high-quality food, thereby affecting and promoting human and animal health.

Soil environmental assessment indicators
The evaluation indicators are related to the weight assignment of each indicator. After the indicator is selected, it is often necessary to assign a certain weight to a single indicator. The weight in environmental quality assessment refers to
The proportion of a certain factor in all evaluation factors can be measured in two aspects. The subjective aspect refers to people's level of concern for the evaluation factor, while the objective aspect is
Refers to the degree of impact of evaluation factors on environmental quality and the degree of harm to human health. There are many methods to determine weights, such as using factor standard values as the basis for judgment
Weighting methods based on measured factor values, weighting methods based on both measured factor values and standard values, etc.

Introduction to Portable Heavy Metal Detector
Portable EDXpert ™ The XRF heavy metal detector is an intuitive and user-friendly system, powered by a 7.2 Vdc Li battery. The instrument unit has been calibrated for supply
For precise measurement, simply remove it from the box without the need for frequent calibration. This design eliminates the impact of inaccurate calibration (human error) on measurement results. high quality
The quantity and reasonable market price make our portable EDXpert ™ The XRF heavy metal detector is very attractive in the market and is the preferred equipment. Standard usage conditions
Next, portable EDXpert ™ The XRF heavy metal detector can run for 8 hours and then needs to be charged. The candidate detection range for lightweight elements is Mg~U.
Portable EDXpert ™ The XRF heavy metal detector, controlled by the Hewlett Packard iPAQ PDA, provides high flexibility and analytical capability for the system.
The PDA has a high-resolution 4-inch touch screen that can be updated with the advancement of PDA technology. Reasonably priced alternative laboratory bench can enable EDXpert ™ XRF Soil Heavy Metals
The detector is used as a laboratory when compared to our desktop EDXpert ™ When using the software instrument, it immediately transforms into a desktop spectrometer.

The principle of portable heavy metal detector
EDXpert ™ The XRF soil heavy metal detector adopts X-ray tube technology, with simple software functions, easy operation, and real-time PDA touch screen reading. After the user returns to the laboratory,
The results can be easily transferred to a computer for long-term storage, analysis, and report generation. The soil heavy metal detector includes software package, spare battery, durable carrying case, and warranty.
This is not just a low-cost alternative; This device is a high-precision and highly flexible system that provides solutions for many portable measurement applications.

Characteristics of portable heavy metal detector
The main application area of this system is hazardous substance analysis, and the equipment performance exceeds the requirements of RoHS and CPSIA regulations. Another compliance with regulations is the "on-site portable XRF analyzer",
Soil testing can provide on-site RCRA metals and non RCRA metals for soil and sediment. EDXpert ™ XRF is an on-site device with laboratory analysis accuracy
Portable X-ray fluorescence spectrometer capable of quickly detecting the content of up to dozens of elements simultaneously from soil and sediment, including all 8 types of US Resource Conservation and Recovery Act (RCRA)
Designated metal elements (As, Se, Ba, Cd, Cr, Ag, Hg, Pb). Suitable for environmental medium requirements: soil and related loose (granular) sample detection mode; This series of products has been approved by environmental protection agencies in various countries
Widely adopted by environmental and health departments, environmental consulting firms, as well as renowned universities and research institutions in Canada, various states and major cities in the United States.

Technical parameters of portable heavy metal detector
Standard element detection range: Cl(Z=17)toU(Z=92)
Alternative lightweight elements: Mg(Z=12)~(Z=16)
Battery operation time: up to 8 hours
Size: 240x230x78mm
Weight: 1.3kg
X-ray detector W anode, 40kV, alternative 50kV, 100uAmp anode, lightweight element analysis 5 filter positions
Detection type: Solid state silicon needle diode, hot electron cooling (alternative SDD)
Active area: 6mm2, alternative 25mm2
Energy resolution: 165eV, 5.9keV Mn Ka line (<140 eV: SDD)
Pulse Processor: Digital pulse processor based on 80MHz DSP
Anti stacking: 0.02-38 "/min/0.5-400mm/min
Pulse shape selector: 21.65 "/550mm
MCA： 4096 channels
Data processing: 624 MHz PDA
Display screen: High resolution 4-inch color touch screen
Supporting operating systems: Windows CE/Mobile, PDA Windows XP/Vista/7 PC
Quantitative analysis algorithm: empirical calibration of basic parameters