Streamlined Method Development with IntelliQuant Screening of DTPA Extracted Soil Samples
Applications | 2019 | Agilent TechnologiesInstrumentation
Analysis of bioavailable elements in soil is critical for assessing environmental health and guiding agricultural practices. Efficient, reliable methods reduce laboratory workload, minimize sample remeasurements, and ensure data quality.
This study illustrates the use of Agilent’s IntelliQuant Screening feature within ICP Expert software to accelerate development of an ICP-OES method for determining eight DTPA-extractable elements in soil, following the Chinese HJ-804 protocol.
Soil samples were prepared by DTPA extraction according to HJ-804. Analysis was performed on an Agilent 5800 VDV ICP-OES equipped with an AVS 6 switching valve system and an SPS 4 autosampler. IntelliQuant Screening captured full-spectrum data in ~15 seconds and automatically selected elements and wavelengths.
IntelliQuant Screening recommended the same element wavelengths as the regulated HJ-804 method, confirming its reliability. For manganese, wavelengths at 257.610 nm and 293.305 nm received five-star ratings, while a low-rated line flagged iron interference. Semi-quantitative concentrations from IntelliQuant were within ±25% of fully quantitative values for Cd, Co, Cu, Fe, Mn, Ni, Pb, and Zn, demonstrating strong agreement.
Advancements may include integration of machine learning to refine wavelength selection algorithms and expansion of semi-quantitative element libraries for broader environmental and industrial monitoring applications.
Combining IntelliQuant Screening with the Agilent 5800 VDV ICP-OES optimizes soil analysis workflows by ensuring reliable wavelength selection, reducing sample remeasurements, and delivering both quantitative and semi-quantitative data with high confidence.
Application Brief: Streamlined Method Development with IntelliQuant Screening of DTPA Extracted Soil Samples, Agilent Technologies, Inc., 2019.
ICP-OES
IndustriesEnvironmental
ManufacturerAgilent Technologies
Summary
Significance of the topic
Analysis of bioavailable elements in soil is critical for assessing environmental health and guiding agricultural practices. Efficient, reliable methods reduce laboratory workload, minimize sample remeasurements, and ensure data quality.
Aims and overview of the study
This study illustrates the use of Agilent’s IntelliQuant Screening feature within ICP Expert software to accelerate development of an ICP-OES method for determining eight DTPA-extractable elements in soil, following the Chinese HJ-804 protocol.
Methodology and instrumentation
Soil samples were prepared by DTPA extraction according to HJ-804. Analysis was performed on an Agilent 5800 VDV ICP-OES equipped with an AVS 6 switching valve system and an SPS 4 autosampler. IntelliQuant Screening captured full-spectrum data in ~15 seconds and automatically selected elements and wavelengths.
Key results and discussion
IntelliQuant Screening recommended the same element wavelengths as the regulated HJ-804 method, confirming its reliability. For manganese, wavelengths at 257.610 nm and 293.305 nm received five-star ratings, while a low-rated line flagged iron interference. Semi-quantitative concentrations from IntelliQuant were within ±25% of fully quantitative values for Cd, Co, Cu, Fe, Mn, Ni, Pb, and Zn, demonstrating strong agreement.
Benefits and practical applications
- Method development in three streamlined steps: rapid screening, wavelength recommendation, and sample analysis.
- Reduced remeasurements by identifying interferences and suitable wavelengths before full quantitation.
- Simultaneous semi-quantitative screening of up to 70 elements provides deeper insight into sample composition.
Future trends and opportunities
Advancements may include integration of machine learning to refine wavelength selection algorithms and expansion of semi-quantitative element libraries for broader environmental and industrial monitoring applications.
Conclusion
Combining IntelliQuant Screening with the Agilent 5800 VDV ICP-OES optimizes soil analysis workflows by ensuring reliable wavelength selection, reducing sample remeasurements, and delivering both quantitative and semi-quantitative data with high confidence.
References
Application Brief: Streamlined Method Development with IntelliQuant Screening of DTPA Extracted Soil Samples, Agilent Technologies, Inc., 2019.
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