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

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

FILTERS

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)

GSCMPA-2 2023

Fresh spinach

Heavy metals in foods

M1: Arsenic (mg/kg), Cadmium (mg/kg), Copper (mg/kg), Chromium (mg/kg), Tin (mg/kg), Iron (mg/kg), Mercury (mg/kg), Lead (mg/kg), Selenium (mg/kg), Zinc (mg/kg)

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

FILTERS

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)

GSCMPA-2 2023

Fresh spinach

Heavy metals in foods

M1: Arsenic (mg/kg), Cadmium (mg/kg), Copper (mg/kg), Chromium (mg/kg), Tin (mg/kg), Iron (mg/kg), Mercury (mg/kg), Lead (mg/kg), Selenium (mg/kg), Zinc (mg/kg)

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)