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Carry Over Performance Verification

Calculate Carry Over (q%) for laboratory instruments

Test Entry Form

Sequence Analysis Chart

Add a test to view the chart

Results Summary

Sr. No.Test NameH1H2L1L2L3q (%)Interpretation
No test data available. Add a row using the form above.

Interpretation & Reference

Carry over effect is calculated using the equation:

Carry Over = (L1 - L3) / (H2 - L3) × 100

"q" may also be called the 'carry-over ratio', and is sometimes expressed as 'percentage value' (Q 100 q). It implies that the influence of carry-over effects on the analytical results is inversely proportional to the concentration difference of the component to be detected by the analytical procedure in the two specimens.

As per the graphs above it seems that the instrument is giving the value straight line drawn in all 3 Low and 2 High values run. Carry-over within a particular procedure is of interest. It is dependent on the method, including all reagents applied. Therefore, carry-over effects, rather than carry-over itself, need to be determined. For this purpose, a sequence of specimens, usually with high (a) and low (b) concentrations of the analyte to be measured are processed. for example a1, a2, b1, b2, b3.

Reference: R. Haeckel, Recommendations for definition and determination of carry over effects, Journal of clinical chemistry Vol.10 No:04 ( oct-Dec 1988, pp 181-183 )

OrganizationCEE DEE DIAGNOSTICS PVT LTD
EquipmentMAGLUMI-800
Study Date18.05.2026

Carry over effect is calculated using the equation:

Carry Over = (L1 - L3) / (H2 - L3) × 100

"q" is the 'carry-over ratio'. It implies that the influence of carry-over effects is inversely proportional to the concentration difference between specimens.

Sr. No.Test NameResults"q" (%)Interpretation
H1H2L1L2L3

Interpretation: Instrument shows linear performance across all 3 Low and 2 High values. Carry-over effects were determined using a sequence of high and low concentration specimens (a1, a2, b1, b2, b3).

Reference: R. Haeckel, Recommendations for definition and determination of carry over effects, Journal of clinical chemistry Vol.10 No:04 (1988).

Signature:
Carry Over formula: q = (L1 - L3) / (H2 - L3) x 100. Acceptable if q < 1.0%