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What is the procedure for hemagglutination test?
1.Take 8 to 12 test tubes and label them.. 2. Add 5 ml saline in each tube to provide isotonic medium.. 3.Add 5 cc blood sample in each tibe 4.Add 1 ml solution containing antibodies 5.Mix and shake gently 5.Took half of first test tube and add to 2nd tube then took half of 2nd tube and add to 3rd tube and son...It is serial dilution..Leave the last tube as such .dnt add antibodies in it..It is Control 6.Keep all test tubes in water bath at temp 37 deg C for 30 min 7.refrigerate them overnight at 4 deg C 8.Check agglutination in the tubes caused by Ag - Ab complex 9. Check the last tube having agglutination..Suppose its dilution is 1:32,then the titer of Ab will b 32.. BY:::dr sakhawat ali
How do you draw a test tube?
To draw a simple test tube, use a long, narrow cylinder with a rounded bottom and an open top. Add a small line near the top to indicate the opening of the test tube. You can also include liquid inside to make it look more realistic.
Why do you not add the indicator at the test tube at the beginnin?
Adding the indicator to the test tube at the beginning may affect the reaction outcome or create unwanted interference. It is often added once the reaction is ready for analysis to ensure accurate results.
What are the steps to do the emulsion test?
To perform the emulsion test: Mix a sample with ethanol in a test tube. Add water and shake vigorously. If a milky white emulsion forms, it indicates the presence of lipids.
How to undertake Phadebas amylase test?
To conduct the Phadebas amylase test, first, take a fecal sample and place it in a tube. Add Phadebas reagent to the tube and incubate it for a specific amount of time. Then, measure the absorbance of the solution at a certain wavelength to quantify the amylase activity in the sample.
How do you measure exactly 60g of salt in a test tube?
First we measure the test tube on the weight machine and note it . let the wieght be 'a' grams. After that keep putting the salt in the tube until the weight of the test tube ,with salt in it, is = (a + 60) grams . If u accomplish this that means that the salt in the tube is exactly of 60 grams :) .
How can a half test tube of sugar and a half test tube of water add up to one full test tube?
When sugar dissolves in water, it occupies space within the water molecules, leading to an increase in volume. So, if you dissolve a half test tube of sugar into a half test tube of water, the volume of the mixture will be greater than the sum of the individual volumes of sugar and water, resulting in a full test tube.
What is the procedure for hemagglutination test?
1.Take 8 to 12 test tubes and label them.. 2. Add 5 ml saline in each tube to provide isotonic medium.. 3.Add 5 cc blood sample in each tibe 4.Add 1 ml solution containing antibodies 5.Mix and shake gently 5.Took half of first test tube and add to 2nd tube then took half of 2nd tube and add to 3rd tube and son...It is serial dilution..Leave the last tube as such .dnt add antibodies in it..It is Control 6.Keep all test tubes in water bath at temp 37 deg C for 30 min 7.refrigerate them overnight at 4 deg C 8.Check agglutination in the tubes caused by Ag - Ab complex 9. Check the last tube having agglutination..Suppose its dilution is 1:32,then the titer of Ab will b 32.. BY:::dr sakhawat ali
What to add to make water fizz?
1. Collect 5 test tubes, test tube rack and a measuring cylinder. 2. Label the test tubes 1 to 5. 3. Put 2 spatula measures of sodium hydrogen carbonate or sodium carbonate into test tube 1. 4. Put 5cm3 of water into test tube 2. 5. Put 1cm3 of indicator into test tube 3. 6. Put 5cm3 of ethanoic acid into test tube 4. 7. Put 5cm3 of ethanoic acid into test tube 5.
What happens to the level of water in a test-tube as hydrogen is produced?
Ya... In a test tube add some aluminum foils and some amount of NaOH... Introduce the flame near mouth of the test tube... Then see the magic...
How do you draw a test tube?
To draw a simple test tube, use a long, narrow cylinder with a rounded bottom and an open top. Add a small line near the top to indicate the opening of the test tube. You can also include liquid inside to make it look more realistic.
What is the procedure for Benedict?
You must take the testing object, then add Benedict's solution in a test tube. Then in a boiling beaker of water, place the test tube in. Let it sit there and see if there is any color change or precipitated materials.
How do you test hydrochloric acid and magnesium metal?
you put the hydrochloric acid in a test tube then you put the magnesium metal in the test tube with the hydrochloric acid in it then you put a cork on the top ofthe test tube and watch it fizz.
Why do you not add the indicator at the test tube at the beginnin?
Adding the indicator to the test tube at the beginning may affect the reaction outcome or create unwanted interference. It is often added once the reaction is ready for analysis to ensure accurate results.
What are the steps to do the emulsion test?
To perform the emulsion test: Mix a sample with ethanol in a test tube. Add water and shake vigorously. If a milky white emulsion forms, it indicates the presence of lipids.
How would you test for the presence of fat?
Get a brown paper bag and rub the food onto it. If the food has fats in it then the paper bag where you have rubbed the food onto it will turn translucent (lets light pass through but not see through) We did this experiment at St Michael's Grammar school in Victoria. I am in year 8.
What measurements would you make to determine the average mass of a heaping microspatula of NaCl?
You would obtain a test tube, measure the mass of the test tube. Then add the NaCl to the test tube and measure the mass. Then subtract the mass of the test tube from the mass of the test tube+the NaCl to find the mass of the NaCl.
