SA7The series of atomic fluorescence morphology analyzers, with their high sensitivity, low detection limit, and strong anti-interference ability, have demonstrated extensive application value in the field of environmental monitoring, especially in heavy metal pollution detection and water body analysis/soil/Air quality assessment and other aspects have played a key role. The following is an analysis of its specific application scenarios and advantages:

1. Water pollution monitoring: precise detection of heavy metals and harmful elements

Application Scenario:
Monitoring heavy metal pollution (such as arsenic, mercury, lead, selenium, etc.) in water bodies (such as rivers, lakes, groundwater, drinking water) is one of the core tasks of environmental monitoring.SA7The series can detect trace level heavy metals in water samples, meeting the Environmental Quality Standards for Surface Water（GB 3838-2002）The requirements of regulations on heavy metal limits.

Technical advantages:

Low temperature atomization technology: reduces matrix interference such as organic matter and chloride ions in water samples, and improves detection accuracy.

High sensitivity: detectableppbArsenic, mercury, and other elements at the level of one billionth are much lower than conventional methods.

Multi element simultaneous analysis: supports simultaneous detection of multiple elements such as arsenic, mercury, selenium, antimony, etc., improving efficiency.

Typical case:
Used by a certain environmental protection departmentSA7A series of monitoring of rivers around an industrial area found that the arsenic content in the water sample exceeded the standard（0.05mg/L, exceedingⅢClass water standard0.01mg/L）Tracing back to the illegal emissions of upstream chemical plants provides key data for law enforcement.

2. Soil pollution assessment: analysis of heavy metal forms and ecological risks

Application Scenario:
The analysis of the total amount and forms of heavy metals in soil (such as exchangeable, carbonate bound, organic, etc.) is used to assess the degree of pollution and ecological risks.SA7The series can distinguish different forms of heavy metals, providing scientific basis for soil remediation.

Technical advantages:

Morphological analysis function: through combined technology (such asHPLC-AFS）Separate heavy metal forms and reveal their mobility and bioavailability.

Strong anti-interference ability: The soil matrix is complex,SA7The series reduces spectral interference of elements such as iron and aluminum by optimizing atomization conditions.

Typical case:
In the soil testing of a certain farmland,SA7The series found that arsenic in soil is mainly in an exchangeable state (proportion)60%）This indicates a high risk of pollution and requires priority restoration.

3. Atmospheric particulate matter monitoring: tracking the sources of heavy metals

Application Scenario:
Atmospheric particulate matter（PM2.5ThePM10）The detection of heavy metals such as lead, cadmium, and chromium is used to analyze pollution sources such as industrial emissions and traffic exhaust.

Technical advantages:

Micro detection capability: capable of detecting atmospheric particulate matterng/m³Heavy metals of grade that meet the Environmental Air Quality Standards（GB 3095-2012）Requirement.

Quick analysis: In conjunction with an automatic sampling system, achieve high-throughput detection of atmospheric samples.

Typical case:
During the winter haze period in a certain city,SA7Series detection foundPM2.5The lead content has significantly increased, and a certain smelting plant has been identified as a pollution source based on wind direction data.

4. Analysis of Sediments and Biological Samples: Evaluating Long term Pollution Effects

Application Scenario:
Accumulation analysis of heavy metals in lakes, marine sediments, and biological samples (such as fish and shellfish) is used to assess the long-term pollution impact on aquatic ecosystems.

Technical advantages:

Low matrix effect: Sediments and biological samples have complex matrices,SA7The series reduces interference through low-temperature atomization technology.

High recovery rate: Experimental results have shown that,SA7The recovery rate of arsenic in sediment can reach95%Above, the data is reliable.

Typical case:
The sediment detection in a certain coastal area shows that the mercury content has been increasing year by year. Combined with biological sample analysis, it was found that the mercury in fish exceeded the standard, indicating the need to control industrial wastewater discharge.

5. Emergency Pollution Event Response: Rapid Screening and Traceability

Application Scenario:
In sudden environmental pollution incidents (such as chemical spills and illegal discharge), quickly screen for pollutants and trace their origins.

Technical advantages:

Quick detection: Single sample analysis time is as short as5Minutes, supporting on-site emergency monitoring.

Portable design: Some models support in car or on-site mobile detection, improving response speed.

Typical case:
In a chemical plant leakage accident,SA7Series in2Mercury was detected in the leaked material within hours, with a concentration of0.5mg/LThis provides critical data for emergency response.

Summary of Technical Advantages

High sensitivity: detection limit as low asppbLevel, meeting the requirements of trace element analysis.

Strong anti-interference ability: By using techniques such as low-temperature atomization and spectral processing, matrix effects and spectral interference can be eliminated.

Easy to operate: high degree of automation, supporting multi-element synchronous analysis, improving work efficiency.

Flexible application: can adapt to various sample types such as water, soil, atmosphere, and biology.

Conclusion

SA7The series of atomic fluorescence morphology analyzers, with their excellent technical performance, have achieved full coverage from trace detection to morphology analysis in the field of environmental monitoring, providing strong technical support for pollution prevention and control, ecological restoration, and law enforcement supervision. In the future, with increasingly strict environmental standards,SA7The series will become an important environmental monitoring institution“利器”.