@article{articleda193bb9, title = {Trends in the development of proficiency testing for chemical analysis:: focus on food and environmental matrices}, author = {Olivares, Igor Renato Bertoni and Souza, Gilberto Batista de and Nogueira, Ana Rita de Araujo and Pacces, Vitor Hugo Polisel and Grizotto, Pamela Aparecida and Lima, Paula Souza da Silva Gomes and Bontempi, Rhaissa Mecca}, year = {2022}, doi = {10.1007/s00769-021-01487-3}, journal = {Accreditation and Quality Assurance} }