14. Environmental Sampling
The chapter explores various facets of environmental sampling, emphasizing the importance of selecting appropriate sampling volumes and methods for accurate measurement of concentrations in different matrices. Key principles of measurement precision and accuracy are discussed, alongside the role of detection limits and sensitivity in analytical methods. Practical examples illustrate the process of obtaining total suspended solids in water and the implications of instrument detection limits.
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6.1.5Fourier Transform Infrared Spectroscopy (Ftir)
This section discusses Fourier Transform Infrared Spectroscopy (FTIR) as an...
What we have learnt
- Understanding sampling objectives is critical for effective environmental monitoring.
- Measurement of concentration, using mass over volume, is essential for assessing environmental quality.
- Different analytical techniques have specific detection limits that influence the validity of results.
Key Concepts
- -- Sampling Objectives
- The specific goals set for environmental sampling, guiding where and what to sample.
- -- Total Suspended Solids (TSS)
- The mass of solids suspended in a volume of water, a key indicator of water quality.
- -- Detection Limit
- The smallest concentration of an analyte that can be reliably measured by an analytical instrument.
- -- Signal to Noise Ratio
- A measure comparing the level of a desired signal to the level of background noise, crucial for determining validity in measurements.
- -- Method Detection Limit
- The minimum concentration that can be reliably detected by a given analytical method, factoring in the specific procedure used.
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