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Why do the membrane filtration and the colilert IDEXX technique for measuring fecal coliforms in waste water produce discrepant results?
The membrane filter / agar plates produce colonies from bacteria that can grow on the agar you are using (not all fecal coliforms can). The Colilert will turn color if the bacteria have the enzyme to metabolize substrates in the Colilert (not all do). If all fecal coliform bacteria could grow on the agar and all fecal Coliforms had the right enzymes you'd get the same numbers.
What else can I help you with?
What is it called when a liquid goes through a filter?
The technique is filtration, and the liquid which comes through is the filtrate.
What was the earliest measuring technique?
See the Web Links to the left for the answer!
When a liquid goes through filter paper what is it called?
The technique is filtration, and the liquid which comes through is the filtrate.
What is the standard measuring technique for flour?
Flour is measured in kg or t.
When you separate a liquid from things that have not dissolved in it what is it called?
This technique is called filtration or decanting, depending on how you do it.
What is the separation technique for Silver chloride and sodium trioxonitrate?
Silver chloride is insoluble in water; filtration is a simple method.
Technician A states that back-probing is a technique used to reduce the chance of damage while measuring?
while measuring for voltage.
What is the technique you use to separate?
Examples of separation methods: filtration, distillation, sieving, ion exchange, solvent extraction, etc.
What is microplethysmography?
The technique of measuring minute changes in the volume of a part as a result of blood flow into or out of it.
What object can you use measuring calculus?
Calculus is a mathematical technique: it is not a unit or tool for measurement.
What kind of technique is spectrometry?
Spectrometry is a technique that involves making an analysis of energy and light. It is done by measuring the intensity of energy against the wavelength of energy.
What is the name for the type of technique used for measuring attitudes?
Scaling is a technique used for measuring qualitative responses of respondents attitudes. Two types of scaling include direct measurement (Likert scale and semantic differential), and indirect measurement (projective techniques).
