agar gel precipitaton test?
152911
I would think so.  All you would need is the antibodies that correspond to the antigens on what ever virus you are working with.
173108
There will be no easy or fast way.  Some options:\n\nhttp://www.analoxusa.com/frame120tb.htm\n\nchemistry.uca.edu/Projects/Quant98/urea-ise-98.pdf \n\nhttp://biocompare.com/newtech/1522/QuantiChrom(tm)-Urea-Assay-Kit.html\n\nwww.springerlink.com/index/X07825U10H247238.pdf
469125
A link to a protocol from Alpco Diagnostics:\n\nhttp://www.alpco.com/pdfs/30/30-2201.pdf
165795
http://www.erowid.org/plants/cannabis/cannabis_testing.shtml
159306
Preenrichment- for non fat dry milk and dry whole milk, weigh 100g of product and transfer to 1L distilled water containing 2ml of 1%aqueous brilliant green dye.Incubate at 35C for 24 +/- 2hrs. Enrichment- transfer 1ml of pre enrichd smple to 10 ml selenite cystine broth and tetrathionate broth respectively incubate at 35C for 24 +/- 2hrs.streak from enrichment media to the ff diff media: brilliant green, salmonella-shigella and bismusth sulfite incubate at 35C fo 24 +/- 2hrs.\nappearance of typical colonies:\nBGA- colorless, pink to fuchsia, translucent to opaque with surrounding medium pink to red.\nSSA- uncolored to pale pink, opaque, transparent or translucent; some produce black centered colonies.\nBSA- brown black sometimes with metallic sheen.\nsubject for further identification using  TSI agar for confirmation.streak the slant and stabb the butt. salmonella positive TSI cultures have alkaline red slants and acid (yellow) butt with or without H2S (blackening of agar) =)
518561
Mg(OH)2 n then Al(OH)3 gel
1045839
GOLD-PLATINUM-PALLADIUM TEST\n\nSelect ore samples suspected to contain Gold-Platinum-Palladium and use concentrates equal to the size of one navy bean or pea. Place the concentrates in a clean test tube and add 1cc Nitric Acid and 3cc Hydrochloric Acid, (this a solution named Aqua Regia which is used regularly when testing.) Boil this over a lamp flame for about 5 to 8 minutes. Should this Aqua Regia solution contain Gold-Platinum-Palladium then the following tests will react with various colors, (good idea to practice on known samples of Gold-Platinum-Palladium for color and reaction identification and become familiar to them.)\n\nTest for Gold (Au).\n\nPrepare a solution for Stannous Chloride for each 8 hour period as this solution does not hold up under extended time periods. Dissolving Metallic Tin (Sn) in Hydrochloric Acid (HC1), where the resulted solution will be called Stannous Chloride (SnC1). Place about 2cc of HC1 in a clean test tube and add 1 or 2 small bit pieces of Metallic Tin to the test tube and bring this to a slight boil. You now have Stannous Chloride (SnC1).\n\nNow begin the gold test by making a spot test with freshly made Stannous Chloride by placing a piece of filter paper onto a clean piece of glass and place one drop of Aqua Regia solution in the center of the filter paper, and then add to this mixture one drop of freshly made Stannous Chloride solution. If gold is present there will show up on the filter paper a purple or rose colored spot when the filter paper has dried; the darker the color the more gold will be present; for low grade ore the spot color will appear plainer. Should the filter paper dry out completely, then add 1 more drop of Stannous Chloride solution to the filter paper to bring out the color.\n\nTEST FOR PLATINUM (Pt)\n\nBegin the test for Platinum (Pt) by placing 20 drops of Aqua Regia solution onto a clean porcelain evaporating dish and boil this over a lamp flame until it is dry, then allow this to remain over the lamp flame for about an extended one second.\n\nPlace the dish where it can cool for a few minutes so as not to break the dish. After cooling, place 4cc of distilled water, (or water free from Chlorine), and reheat just to the boiling point. Filter this solution onto another clean porcelain evaporating dish. Add to this dish, Potassium Iodide equal to one grain of rice. Warm this solution slightly over the lamp flame and observe the color that appears. The results for this test will show if Platinum (Pt) is present as the solution will begin to turn to a light or dark rose color within a few minutes time.\n\nThe more Platinum present in the solution, (ore sample), the quicker and darker the color will appear.\n\nSulphides and other impurities, most likely will give a red color to the solution and will be mistaken for the rose color, if so, then boil off about one-half of the solution to quicken the evaporation process. Then let the porcelain dish set until completely dry, then add a few drops of clean plain water, (no chlorine water). The result will then be a bright rose color, and should there be Sulphides or other impurities in the solution they will appear as colorless. If this solution should appear red, then add a few cc’s of plain water to dilute the dark rose color to a lighter rose color, then you have Platinum (Pt).\n\nTesting for Palladium(Pd).\n\nIn the test for Platinum (Pt), upon adding Potassium Iodide (KI) and warming the procedure, if Palladium (Pd) is present in the sample ore, the solution will turn a dark color or black, which depends upon the amount of Palladium (Pd) present. The more Palladium (Pd) present, the darker the color will be, and also there will be a black precipitate in the bottom of the porcelain dish, which when adding an excess of Potassium Iodide (KI) will dissolve giving a wine-red color appearance.
851316
I think I might be qualified to answer this question.\n\nDNA is separated in an electrophoretic field based on the size of the molecules.  \n\nImagine wet spaghetti strands (all different sizes) passing through a thick block of Swiss cheese.   Agarose electrophoresis is based on the ability of the smaller molecules to pass through holes easier than the larger molecules.\nThe smaller the mass, the more nimble it is, and the quicker it can manage all those "Swiss cheese" holes that agarose gels naturally have.\n\nOnce the DNA has run through the gel for a sufficient amount of time, you can stain the gel (actually you can stain the gel as the DNA moves through the gel too).  \n\nThe stain (the classic one is ethidium bromide, but there are others) has a propensity to squeeze itself between nucleotides on both strands.  When it is exposed to a transilluminator light  with a specific wavelength, the ethidium bromide will fluoresce and can be photographed for a permanent record.  \n\nAnalysis is typically based on running controls (positive and negative controls) and a size ladder along with the "unknown" PCR amplicon.  Usually I can predict the size of my unknown amplicon before I run the reaction. \n\nI can then choose a size ladder that will at least give me a rough idea of the size of my amplicon I expect. The ladder also allows me to observe any other false amplicons created during the PCR.  Additionally, some like to estimate how much PCR amplicon was generated in the reaction by comparing the intensity of the size ladder with the intensity of the amplicon. \n\nI hope I was able to help in answering your question.  Hoping YOU spread the good Karma!
47527
it depends how many bands you are likely to get. If you only expect one protein (one band-eg a purified protein) i found that loading about 3-6 micrograms was enough for a 12% acrylamide gel (I have not tried agarose for proteins). It will increase with  the number of proteins you might have (ie more bands, you need to load more) and the staining or visualisation method you will use.
762275
usually you can see the colonies in the agar. they'll be kind of circular spots in the agar. then you can put them under a microscope and see what kind of bacteria it is.
1084118
Try Copper Test by points
202405
Here is one of the tests you are talking about.  I hope this helps.
946141
Please call the lab where you'll have the test done and ask this important question.  Good luck.
735927
Funny you should ask,,I just bought one ,with the recomendation of a friend and am about  to take a test in about an hour or so..ill probablly get the resultsmon..and will try to let you know..
751016
Gel filtration is a type of size exclusion chromatography where your packing material is made of silica or a polymer containing a network of uniform pores.  Larger molecules cannot get into the pores so elute more quickly, smaller molecules the opposite.\n\nTo measure molecular weight of an unknown protein you would first need to produce a calibration plot by running through a series of standard proteins of known molecular weight and measuring the elution time for each.  You would then produce a calibration plot of log molecular weight versus elution time (note the log here).  Then finally you would run your unknown protein through, measure it's elution time and then use your graph to get its log molecular weight and hence its molecular weight!!
567354
You can get disposable, sterile swabs.  These would probably work the best.  You should be able to get them via online... google "lab equipment swabs".\n\nopen your swab, being careful to not touch the tip.  Run the swab over the section you want to culture.  Then, simply smear the swab onto the petri dish.  \n\nFor the petri dishes, you probably want more than just an empty dish.  You want an agar plate.  An agar plate is a gelatinous material on the bottom of the dish that provides food and nourishment for the bacteria.\n\nYou could probably use gelatin as a stand-in.  Buy plain gelatin and make a batch twice as concentrated as it should be.  This will make the gelatin harder and less likely to melt at room temperature.\n\nGood luck!
808481
try API20E or any other commercial available kit. or conventional sugar test recommended by CDC.