Do you need control materials to validate your methods or carry out your quality control?

In addition to organizing proficiency testing schemes, we provide you with leftover samples from proficiency testing rounds in the agri-food and environmental fields. These are available for laboratories that wish to develop internal quality controls with safe samples. All of them come with a certificate that includes:

  • Assigned value and associated uncertainty, and the number of laboratories assigning it
  • Details about the nature of the sample, representative of the matrices commonly analyzed

GSC JUICE/2024

Orange juice

JUICE

M1A: Total acidity (g citric acid/100 mL)(1), Total sugars (%)(1), Density (20ºC/20ºC)(1), Fructose (mg/100 mL)(1), Glucose (mg/100 mL)(1), Brix degrees at 20ºC (°Brix), Sucrose (mg/100 mL)(1)

M1B: Sulfur dioxide (mg/L)(1)

GSCCA-2/2024

Quince

Preservatives in Food

M1: Sodium metabisulfite (Sulfur dioxide) (mg/kg SO2)

GSCHIS/2024

Tuna

Histamine in Fishery Products

M1: HISTAMINE (mg/kg)

GSCPC-2/2024

Toasted bread

M1: Acrylamide (µg/kg)

GSCTOX-5/2024

Raisins

MYCOTOXINS IN FOOD

M1: Ochratoxin A (µg/kg)(1)