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In the use-dilution test a chemical is evaluated by its ability to kill 10 6 to 10 8 dried Clostridium sporogenes or Bacillus subtilis endospores Why is this considered a stringent test?
A measure of determining the effectiveness of a disinfectant using serial dilutions. definition found in intro to microbiology by Tortora, Funke, and Case.
What is the best use of negative staining?
size and shape
What is a ten fold serial dilution?
Serial dilution is usually 1/10 dilution. Therefore after a series of dilutions, you have a logarithmic curve of concentration (log10). Basically, if diluting 1/10 and starting off with 1 molar solution, first dilution = 0.1M, 2nd = 0.01M, 3rd = 0.001M. If making a 0.001M solution involved weighing out 0.005g of a salt for example, the error in making this solution out would be very large in comparison to weighing out 5g (1M) and diluting it 3 times by serial dilution. The benefit of it is mainly accuracy.
How do you plot negative latitude and longitude?
To plot negative latitude and longitude coordinates, use the correct format for the coordinates (e.g., (-12.345, -67.890)) and ensure that your mapping tool or software supports plotting negative coordinates. Most mapping tools will automatically recognize negative values and plot the coordinates accordingly.
What is the ICD 9 code for gram negative bacteria?
The ICD-9 code for gram-negative bacteria is 041.4. It is used to indicate infections caused by gram-negative bacteria in the coding system.
