Explain the air samplers - air sampling, Biology

Assignment Help:

Explain the Air Samplers - Air Sampling?

Air Samplers, e.g., all glass impinger and the Andersen sieve samplers may be used. Volume of the air sampled is known. In all glass impinger, air is pulled through a capillary orifice by vacuum and impinges on the diluent placed in the impinger. Microorganisms are trapped in the liquid and plated for SPC. The method does not work well when numbers of organisms are too small.

In the Andersen sampler, air is drawn through one or more sieves by vacuum and the microorganisms are trapped on the surface of agar plate.  After incubation of plates, enumeration of microbial load is done.


Related Discussions:- Explain the air samplers - air sampling

Define control of infections for treatment for pem, Define Control of infec...

Define Control of infections for treatment for pem? Appropriate antibiotics should be started immediately since infections are the immediate cause of death in many children. Ch

What percentage should be homozygous, If 40% gene pool is heterozygous then...

If 40% gene pool is heterozygous then what percentage should be homozygous?

Ganong''s potometer, What happens to the movement of the air bubble if the ...

What happens to the movement of the air bubble if the apparatus is kept in i. In the dark ii. In sunlight iii.In front of a fan

Explain materials for root end filling- amalgam, Explain Materials for Root...

Explain Materials for Root End Filling- Amalgam a) Its radiopacity is the better than any other REF materials b) Greatest amount of leakage! c) Corrosion, and significant

What are the genotypes of all individuals, 1. In cattle, the polled conditi...

1. In cattle, the polled condition (H) is dominant to the horned condition (h). A cross between an individual with red coat (R) and white coat (W) results in roan (RW). A polled, r

Explain the characteristics of a biological community, Which one of the fol...

Which one of the following is one of the characteristics of a biological community? 1.  Stratification 2. Natality 3. Mortality 4. Sex-ratio   Stratification

Deficiency diseases-sporadic exertional rhabdomyolysis, Sporadic exertiona...

Sporadic exertional  rhabdomyolysis (azoturia, tying up in horses) Azoturia is a metabolic condition of horses that is characterized by reluctance to move and poor performance.

What is meant by the arch reflex, Q. What is meant by the arch reflex? ...

Q. What is meant by the arch reflex? In some situations the movement of the skeletal striated muscles does not depend upon commands of the superior motor neurons that it is not

Pteridophytes, What are the affinities of pteridophytes with gymnosperms?

What are the affinities of pteridophytes with gymnosperms?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd