GC LOD RSD Calculator – Residual Standard Deviation

Use this GC LOD RSD calculator to determine LOD for your chromatographic method using the formula LOD = 3.3 * Sigma ÷ Slope.

GC LOD RSD Calculator Interface

What inputs are required ?

• Min 4 x concentrations of a target compound used to build its calibration curve
• Min 4 x peak areas of a target compound used to build its calibration curve

What the GC LOD RSD Calculator Outputs

• Slope of the calibration curve (area as y axis – concentration as x axis)
• Intercept of the calibration curve (area as y axis – concentration as x axis)
• Residual standard deviation of the calibration curve (area as y axis – concentration as x axis)
• Detection limit (LOD)
• Quantitation limit (LOQ)

Before You Go

Want to understand how this calculator works behind the scenes?
Read the full explanation in the GC LOD Residual SD: Simple Detection Limit Guide post in the Detection Limit (LOD/LOQ).

Browse related calculators below:

• GC LOD SN Calculator – Signal to Noise Ratio & Peak Height
• GC LOD Area Calculator – Signal to Noise Ratio & Peak Area – Peak Width
• GC LOD Blank SD Calculator – Standard Deviation From Blanks
• GC LOD Standard SD Calculator – Standard Deviation From Known Standard

Or if you’d like to explore other free GC calculators, browse the full collection here.