True or False: In the soil test for phosphorus, using the soil test kit, adding solution E will produce a bluish color on the solution if phosphorus is sufficient. Select one: O True False
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- make the test principle, materials required for the analysis, sample preparation, test procedure, indication of a positive result, complications/interferences, for nitrous acid test.What is moisture content of test results.In outline form discuss the steps of Ziehl-Neelsen staining Complete the table for National Reporting Scale (Description) National Reporting Scale Result Description 0 +n 1+ 2+ 3+
- The table below summarizes the results for Lead-sulfide test. Provide the correct remarks from the results if Negative for Lead-sulfide test or Positive for the Lead sulfide test and it's either Negative for -SH or Positive for -SHDifferentiate Wintrobe from Westergren regarding accuracy of the test in a tabulated order.https://www.youtube.com/watch?v=rKng5-ij6kQ Provide a schematic diagram for the Molish test methodologies in determining the presence of carbohydrates. Also, give the basic principle for the test. (not a graded question, the video is very brief) (please take time to answer)
- Please give the color of each analysis indicating positive result and substance formed causing the colorExample:Iodine test - violet solution indicates presence of Starch - triodide formation Fehlings test -Nylanders test -Barfoed’s test -Picric acid test -Schiff’s test -Given the following media recipe, pick the terms that apply (pick as many as are applicable). 10.0 g Meat extract 10.0 g Peptone 5.0 g Sodium chloride 15.0 g 1.0 L Agar Water Once media is cool, add 6% sterile sheep's blood Defined Complex Minimal Selective DifferentialIn a(n) _________ test, the effectiveness of a microbial control agent is compared to that of carbolic acid. Question options: use-dilution in-use Kelsey-Sykes capacity phenol coefficient Entner-Doudoroff algebra
- Discuss the correct laboratory technique in using the centrifuge for qualitative analysis. Give two tips on its proper use. Explain how calcium ions are confirmed present in a solid salt by using flame test. Discuss a method to confirm the presence of a) phenol and b) ketone in a test compound. How are proteins confirmed present in a sample? Explain the laboratory process.Provide the Experimental procedure of the following: Example: Ninhydrin Test -The samples needed in this test were 1% casein solution, albumin and gelatin and the reagent used was ninhydrin (Triketohydrindenehydrate or Triketohydrin hydrate). Test tube, test tube stand, pippete, water bath, and spectrophotometer were the materials and equipment used. Ninhydrin reagent in 1-2 drops was added to 0.5 ml of the sample with care. It was mixed and heated to boiling for 1-2 minutes. Then, it was allowed to cool to record the observation. Test that needs Experimental procedure: 1. Heat denaturation Samples: Albumin, gelatin 2. Isoelectric Precipitation Samples: Casein 3. Concentrated Mineral Acids Samples: Albumin 4. Organic Solvents Samples: Albuminif the biuret reagent was allowed to stand for 1 hour, what would the effect on the accuracy of the test