Table 3 Parameters used to estimate the residual soil amount during washing.

From: Comparative evaluation of QuEChERS and the ‘dilute and shoot’ QuPPe extraction methods coupled with LC-MS/MS for the analysis of mepiquat residue in sweet potatoes: addressing residual soil impact on recovery efficiency

Parameter

Value

Initial soil load

5 g per sweet potato

Water flow rate

3 L/min

Washing duration

10 min

Scrubbing method

Gentle manual scrubbing

Sweet potato surface area

~ 150 cm²

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