Glucose Standard Curve Jun 2026

| Tube | Glucose stock (mL) | Distilled water (mL) | Final conc. (mg/mL) | |------|--------------------|----------------------|----------------------| | 1 | 0.0 | 1.0 | 0.0 (blank) | | 2 | 0.2 | 0.8 | 0.2 | | 3 | 0.4 | 0.6 | 0.4 | | 4 | 0.6 | 0.4 | 0.6 | | 5 | 0.8 | 0.2 | 0.8 | | 6 | 1.0 | 0.0 | 1.0 |

In the case of glucose, researchers prepare a series of "standards"—samples with precise, pre-determined glucose concentrations. By measuring the response of these standards using a spectrophotometer or glucose meter, they create a linear equation. This equation allows them to "calculate back" the concentration of any unknown sample based on its measurement. How the Process Works glucose standard curve

to create at least five standards within the expected detection range. For example, a 2-fold dilution series might include 1.0, 0.5, 0.25, 0.125, and 0.0625 mg/mL. | Tube | Glucose stock (mL) | Distilled

In a successful experiment, the points will form a straight line. Using a "best-fit" line, you generate a linear equation: y: The absorbance measured by the machine. m: The slope of the line (sensitivity). x: The glucose concentration (the value you want to find). b: The y-intercept (the absorbance of the blank). The R² Value This equation allows them to "calculate back" the

Leo looked at the graph. He traced the Y-axis up to 0.34. He slid his finger horizontally until it hit their perfect straight line, then dropped it straight down to the X-axis.