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

GSCFOL 2024

M1: Hoja de olivo M2: Hoja de naranjo

Foliar

M1: Boron, Calcium, Copper, Total Phosphorus, Iron, Magnesium, Manganese, Kjeldahl Nitrogen, Potassium, Zinc

M2: Boron, Calcium, Copper, Total Phosphorus, Iron, Magnesium, Manganese, Kjeldahl Nitrogen, Potassium, Zinc

GSCMPA-1/2025

Mussel

Heavy metals in foods

M1: Arsenic (mg/kg) Cadmium (mg/kg) Copper (mg/kg) Tin (mg/kg) Iron (mg/kg) Manganese (mg/kg) Mercury (mg/kg) Lead (mg/kg) Zinc (mg/kg)

GSCNU 2024

Prepared dish (Chickpea salad)

Nutritional composition in foods

M1: Total sugars (% w/w), Calcium (mg/100g)*, Ashes (% w/w), Energy (kcal/100g)*, Dietary fiber (% w/w)*, Total phosphorus (mg/100g)*, Crude fat with prior hydrolysis (% w/w), Saturated fats (% w/w)*, Metabolizable carbohydrates (% w/w)*(2), Total carbohydrates (% w/w)*(2), Moisture (% w/w)(1), Crude protein (N × 6.25) (% w/w), Sodium (mg/100g)