Explore Lab Tech, Lab Rats, and more!

Explore related topics

9. Nitrate test with Durham tube.  This test is used to determine whether the organism can convert nitrate to nitrite, and/or N2 gas.  With reagents, nitrite will show up as red.  Nitrogen gas will show up as a bubble in the Durham tube.  If nitrogen gas was produced by change to nitrate first, nitrate will not appear unless zinc is applied.  After application of zinc, reagents can be applied to test for nitrite.
Reagents:sulfanilic acid (A) and dimethyl-alpha-napthylamine (B).

9. Nitrate test with Durham tube. This test is used to determine whether the organism can convert nitrate to nitrite, and/or N2 gas. With reagents, nitrite will show up as red. Nitrogen gas will show up as a bubble in the Durham tube. If nitrogen gas was produced by change to nitrate first, nitrate will not appear unless zinc is applied. After application of zinc, reagents can be applied to test for nitrite. Reagents:sulfanilic acid (A) and dimethyl-alpha-napthylamine (B).

A person who collected the sample kept blood sample warm....... in boiling water      Source: Facebook via Abbie Poirier ‎

A person who collected the sample kept blood sample warm....... in boiling water Source: Facebook via Abbie Poirier ‎

Free MAT Practice Test Questions by TestPrepReview. Be prepared for your Miller Analogy test. #matexam

Free Certified Neuroscience RN (CNRN) exam prep to help you pass your Certified Neuroscience RN (CNRN) examination. The Certified Neuroscience RN (CNRN) exam indicates specialization.

Épreuve du citrate en milieu Simmons (CIT) // Citrate (substrat) ---citrase (enzyme)---> sodium bicarbonate (produit alcalin) ; indicateur de pH bleu de bromothymol ; Bleu = positif, Vert = négatif

Épreuve du citrate en milieu Simmons (CIT) // Citrate (substrat) ---citrase (enzyme)---> sodium bicarbonate (produit alcalin) ; indicateur de pH bleu de bromothymol ; Bleu = positif, Vert = négatif

7. Citrate utilization test.  This slant test determines whether the organism can use citrate as its sole source of Carbon.  Prussian blue if positive, and the result of a high pH (from released ammonia).

This slant test determines whether the organism can use citrate as its sole source of Carbon. Prussian blue if positive, and the result of a high pH (from released ammonia).

Urease Test- Principle, Media, Procedure and Result. The urease test is used to determine the ability of an organism to split urea, through the production of the enzyme urease.

Urease Test- Principle, Media, Procedure and Result. The urease test is used to determine the ability of an organism to split urea, through the production of the enzyme urease.

Pinterest
Search