RUSH – Quantitation of Eugenol, Thymol and Citral in a FIFRA 25(b) Botanical Miticide Spray

Seeking an analytical laboratory to quantify three active ingredients in a finished, ready-to-use botanical miticide spray for houseplants, registered as a FIFRA 25(b) minimum risk pesticide. Quantitation must be calibrated against reference standards, not reported as area percent.

Matrix:
The product is a water-based finished formulation, roughly 80–90% water, 3–7% isopropyl alcohol, and about 1% potassium coconut soap. Each active is present at less than 1%, so an extraction step will be required.

Analytes and label-declared levels (% w/w):

Eugenol: 0.78%
Thyme oil: 0.70%, measured as thymol
Lemongrass oil: 0.34%, measured as citral (neral + geranial), with an expected result of about 0.27–0.31%

Purpose and requirements:
The goal is to assess bottle-to-bottle consistency across 3–5 samples from different production batches. All samples should be analyzed using the same method, in the same run if possible. Precision/uncertainty must be reported for each result, as results with a wide margin of error will not meet the requester’s needs. Chromatographic techniques such as GC-FID may be applicable, but the laboratory is invited to propose its own method.

Not required:
Isopropyl alcohol or solvent testing, a full GC-MS profile, or purity/adulteration screening.

Timeline and quote:
This is a rush request. Please include per-sample pricing and any rush fee in your quote. Samples will ship from Denver, CO. Email is the preferred contact method.