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

State the uni-ocular movements, State the Uni-ocular Movements In each...

State the Uni-ocular Movements In each eye, for every movement there is an agonist, antagonist, and a synergist. An agonist is the main muscle that is active in carrying out t

Contamination due to pathogens - water pollution, Contamination due to Path...

Contamination due to Pathogens - Water Pollution Sewage is a source of pathogenic viruses, bacteria, worms and other parasites. The extent of contamination by these pathogens

What happens when the ovum is fertilized, What happens when the ovum is fer...

What happens when the ovum is fertilized? If the ovum is fertilized, there is no breakdown of endometrium and no menstrual flow. The fertilized ovum travels through uterine tub

What do you mean by eutrophication, Q. What do you mean by eutrophication? ...

Q. What do you mean by eutrophication? The Eutrophication is the process of excessive increasing of nutrients, like nitrate and phosphate in water due to direct deposit of non

Respiratory distress syndrome, Respiratory Distress Syndrome: Respirat...

Respiratory Distress Syndrome: Respiratory distress in a  newborn is  a challenging problem.  It  accounts for significant morbidity and mortality. It occurs  in  4 to 6 per c

Eggs, What is the type of egg in which yolk is absent?

What is the type of egg in which yolk is absent?

What is centrioles in cell structure, What is Centrioles in cell structure?...

What is Centrioles in cell structure? Most cells of higher organisms contain pairs of cylindrical bodies called centrioles, which help to organize microtubules in cell division

Explain adverse effects of voriconazole, Adverse Effects of voriconzole ...

Adverse Effects of voriconzole Transient visual disturbances, including blurred vision, photophobia and altered perception of color or image, are common with voriconazole. Rash

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