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This course, Test kits for water analysis, steps outside the laboratory to look at some examples of analytical procedures being carried out in the field using commercial test kits.
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50
English
English [CC]
FREE
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Description
These quick tests provide results on-site, extending the options available to analysts. The methods used are chemical or microbiological in nature, made portable by microelectronics.
Course learning outcomes
After studying this course, you should be able to:
- Appreciate the range of test kits available for determining some of the key parameters defining water quality on-site
- Appreciate the criteria involved in obtaining a representative sample and carrying out fit-for-purpose measurements
- Understand the chemical principles underpinning portable colourimetric, titrimetric and non-photometric instrumental test kits and the technical considerations which make portability possible
- Understand the operation of a portable bioluminescence unit for ATP testing
- Recognise the health and safety requirements of carrying out field measurements.
Course content
- Introduction 00:20:00
- Learning outcomes 00:10:00
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- Test kits for water analysis 00:10:00
- Water sampling methods 00:15:00
- Obtaining a meaningful sample 00:05:00
- Sample collection 00:10:00
- Sample pre-treatment 00:20:00
- On-site tests 00:10:00
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- Colourimetric tests 00:10:00
- Test strips 00:30:00
- Colour comparators 00:20:00
- Photometric tests 00:30:00
- The chemistry of colourimetric tests 00:10:00
- Ammonia 00:20:00
- Nitrate 00:25:00
- Sulfate 00:15:00
- Chemical oxygen demand 00:25:00
- Electrochemical methods 00:10:00
- Dissolved oxygen probes 00:10:00
- Galvanic DO probes 00:15:00
- Amperometric DO probes 00:15:00
- pH probes 00:25:00
- Electrical conductivity measurements 00:45:00
- Conclusion 00:07:00
Instructor
OpenCoursa
Accessible Education for Everyone
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