Explain the polycarbonate nucleopore filtre, Biology

Assignment Help:

Explain the Polycarbonate Nucleopore Filtre?

A given sample is filtered through a membrane filter, usually polycarbonate nucleopore filter with a pore size that will retain bacteria (generally 0.22 µm or 0.45 µm). Viable counts are made by placing the filter on agar medium plate or on an absorbent pad saturated with the culture medium. Alternatively, direct microscopic counts are made, the efficiency of which can be improved by using fluorescent dyes and epifluorescence microscope. Membrane filter technique can be used only for small samples of dilute homogenates.


Related Discussions:- Explain the polycarbonate nucleopore filtre

Necessity of transport in phloem, Necessity of Transport in Phloem Lea...

Necessity of Transport in Phloem Leaves produce photoassimilates and support various tissues including roots. The excess photoassimilates and metabolites stored in specialised

Causes of noise pollution, 1.      Road traffic:  of all the sources of noi...

1.      Road traffic:  of all the sources of noise pollution, road traffic is the most prevalent and perhaps the most damaging source of pollution. More people are exposed to noise

Solid fuels, Primary and secondary solid fuels are widely used in domestic ...

Primary and secondary solid fuels are widely used in domestic and industrial purpose. Wood and coal constitute the important primary solid fuels. The important secondary solid fuel

Infusion pump, Infusion Pump As you'have learnt earlier, the amount o...

Infusion Pump As you'have learnt earlier, the amount of fluid to be administered to neonate is based on the neonate's weight and physiological status. It is recommended that

Calculate the volume of blood plasma, If one determines the concentration o...

If one determines the concentration of cortisol in the blood plasma to be 10 ugrams/ml and that in a 24 hour period a person excretes 10 mgs of cortisol, calculate the volume of bl

Difference between diastolesystole and systole, Q. What is the difference b...

Q. What is the difference between diastoleSystole and systole and diastole are the two stages into which the cardiac cycle is divided Diastole is the stage of the cardiac cycle

Adenine, Adenine is one of the four nitrogen-containing bases occurring in...

Adenine is one of the four nitrogen-containing bases occurring in the nucleotides, the building blocks of organic macromolecule group called as nucleic acids (DNA and RNA). Adenin

Explain precautions for capsule staining in a culture, Explain Precautions ...

Explain Precautions for capsule staining in a culture? 1. Never heat fix the smear. This is because by heating shrinkage can occur which may create a clear zone around the cell

Define sample titration for saponification number of fats, Define Sample Ti...

Define Sample Titration for Saponification Number of Fats? Measure 2 ml of oil with the help of a pipette and transfer this oil to a 250 ml conical flask. Add 40 ml of alcoholi

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