Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Mariela Pistón"'
Publikováno v:
MethodsX, Vol 13, Iss , Pp 102893- (2024)
An analytical method for the determination of toxicological relevant species of arsenic in urine was developed and validated using hydride generation microwave-induced emission spectrometry (HG-MP-AES). This strategy can be used as an alternative to
Externí odkaz:
https://doaj.org/article/1b18eb8401194eaf81032b8d7e975486
Publikováno v:
Heliyon, Vol 9, Iss 10, Pp e20967- (2023)
Green Analytical Chemistry (GAC) metrics include a variety of criteria, such as the regent amounts and toxicity, energy consumption, generated waste, among others. The analytical greenness metric (AGREE) and its variant for sample preparation (AGREEp
Externí odkaz:
https://doaj.org/article/a51fc8176c4c43108998a45940766b94
Publikováno v:
Agrociencia Uruguay, Vol 27, p e1060 (2023)
Vegetables are a rich source of macro and micronutrients. Particularly, potatoes and sweet potatoes are widely consumed and are two of the most important food crops in the world. Therefore, contamination of these products due to their content of inor
Externí odkaz:
https://doaj.org/article/c2f3277918974e59ace676cc8e1c775f
Publikováno v:
MethodsX, Vol 9, Iss , Pp 101793- (2022)
An analytical method for sample preparation of igneous rocks and subsequent determination of Si, Na, K, Ca, Mg, Al, Fe, Mn, Ba, Sr, and Ti by means of microwave induced emission spectrometry (MP-AES) was developed and validated. The proposed sample p
Externí odkaz:
https://doaj.org/article/758a843c30f4430a8a989923d5e96b54
Publikováno v:
Avances en Ciencias e Ingeniería, Vol 10, Iss 3, Pp 33-40 (2019)
Este trabajo describe la optimización de un método espectrofotométrico clásico (“método Hornsey”) para determinar hierro hemo en carnes. Este método extrae hierro hemo de la carne mediante agitación con acetona ácida, maceración en la os
Externí odkaz:
https://doaj.org/article/77a6616c8e7a47a29ed11bb1fa35a3d3
Publikováno v:
Results in Chemistry, Vol 3, Iss , Pp 100089- (2021)
Ultrasound-assisted extraction (UAE) methods for food analysis are recognized as being in accordance with the principles of green analytical chemistry (GAC). Reference standard methods generally use microwave-assisted extraction (MAE) for sample dige
Externí odkaz:
https://doaj.org/article/53b0ca7df3a74134ab1ae44f5d9c913f
Publikováno v:
Journal of Analytical Methods in Chemistry, Vol 2021 (2021)
A green analytical method for the determination of Cu and Zn in rice samples was developed. This method was based on an ozone-assisted extraction (OAE) in diluted acid media. A novel closed system was designed for this purpose that allowed four simul
Externí odkaz:
https://doaj.org/article/1b730b661f7c4f20abcd6e21fc2202f4
Autor:
Javier Silva, Mariela Pistón
Publikováno v:
Molecules, Vol 26, Iss 6, p 1662 (2021)
An on-line preconcentration system for the simultaneous determination of Copper (Cu) and manganese (Mn) in water samples was developed and coupled to a microwave-induced plasma optical emission spectrometer (MIP OES). The flow injection system was de
Externí odkaz:
https://doaj.org/article/c30489a7ebee43c8a9b442452fc5dc72
Publikováno v:
Avances en Ciencias e Ingeniería, Vol 4, Iss 3, Pp 27-35 (2013)
Se realizó la determinación de sodio, calcio y cobre en 45 muestras de vinos Uruguayos, con el fin de evaluar si cumplen con los requisitos de la normativa de la región y, establecer si existe relación entre los niveles de estos elementos y el ti
Externí odkaz:
https://doaj.org/article/408888d67baa4daa88838a82673190eb
Autor:
Mariela Pistón, Moisés Knochen
Publikováno v:
Avances en Ciencias e Ingeniería, Vol 2, Iss 3, Pp 57-66 (2011)
Se presenta el desarrollo y optimización de un sistema en flujo con inyección secuencial (SIA) para la determinación de zinc en leche en polvo y fórmulas infantiles. La determinación se basa en la reacción de Zn(II) con zincón a pH 9 en presen
Externí odkaz:
https://doaj.org/article/c2b6b2ccc3e14ddbbb8be489c79cddaa