given the standard of 200 mg/dl and the absorbance of that standard is 0.640. What is the concentration of the unknown if the absorbance is 0.252?
given the standard of 200 mg/dl and the absorbance of that standard is 0.640. What is...
A bilirubin standard of 5.0mg/dL had an absorbance of 0.898 at 454 nm. A patient sample had an absorbance of 0.600 at 454nm in the same cuvette. What was the bilirubin concentration of the sample? Answer is 3.3 mg/dL Please show work
2. The AMR for a method for measuring glucose has been determined by the manufacturer to be 20-500 mg/dL A. The data for its verification study is shown below. Is the method's linearity verified for this range? Standard Standard [Glucose] mg/dL Absorbance Blank Standard 1 Standard 2 Standard 3 Standard 4 Standard 5 Standard 6500 0.000 0.050 0.099 0.201 0.298 0.402 0.501 50 100 200 300 400 B. The method allows a maximum dilution by a factor of 10. What...
The standard concentration of the antibiotic Vancomycin is 6.20 mg/dl. It is diluted 1:10. Then 1.0 ml of the first dilution is added to 4.0 ml of diluent? What is the final concentration of the antibiotic in this solution?
Patient's total serum cholesterol concentration is Cpatient- (Apatient Astandard) x Cstandard (0.237/0.331) x 200 mg/dL 143.2 mg/dL Therefore 143.2 mg/dL
The concentration of cholesterol in the blood serum of a normal adult is approximately 200 mg/dL. How many grams of cholesterol does a person with a blood volume of 5.75 L have circulating in the blood? Show your work.
2. The concentration C (in mg/dl) of a certain antibiotic in a patients bloodstream is given by C= 50t /t^2+ 25 where t is the time (in hours) after taking the antibiotic. a. What is the concentration 4 hours after taking the antibiotic? b. In order for the antibiotic to be effective, 4 or more mg/dl must be present in the bloodstream. When do you have to take the antibiotic again?
. Beer's Law of Formula Conc Unkown(Uk) Concs(Standard) Absorb Uknown(Au) f the CS-0.25, As 0.4mg/dl, Au o.4mg/dl what is the concentration of the unknown 2. Enzyme Calculations Formula- Enzyme Unit-A/min-VolumetTotal Volume)+10-6 Absorb of Standard(As). Extinction Coeff Volume (Serum)*1 Problem An enzyme in 0.1 ml ser of the mixture is 0.0220. What is the enzyme unit inU/L? um in 3.1 ml of substrate gave an absorption of 0.002 and the extinction coefficient 3. Osmolality Calculation Formula Osmolality- 1.86 mmol/L Na+ Glucose...
I) ion solution of unknown concentration shows an absorbance of 0.55. What a. A metal(II) ion solution of unk of the metal(II) ion in the sample? nce is the molar concentration b. Assu ming a molar mass of the metal(II) ion is 58.93 g/mol, what is the concent mg/L (ppm)? what is the concentration of metal(lI) ion in units eFor a metal(II) ion solution having a 0.0080 M concentration, what would be its predicted absorbance 5. Experimental Procedure, Part D....
Two analytes, X and Y, have overlapping absorbance spectra for 200 nm <^ < 800 nm. None the less, determine the concentration of each analyte in an unknown mixture, using the information from absorbance measurements at two a’s. For calibration, individual standards of X and Y were analyzed at a concentration of 2.0 x 10-4M. A 1.0 cm pathlength cell was used. The following data were obtained: Sample Absorbance at 22 Absorbance at 2#1 350 nm 650 nm Unknown Mixture...
10.0 mg/dl calibration reference had an absorbance of 628 bance of .270. The 24 example: A urinary calcium level (mg Cat+ /24 hours) for the following while a specimen urine diluted 1:2 gave an absor hour uri ne volume was 1320 ml. (Show all work) Is this value normal or abnormal? Explain. (6 points)