1659-1321

1659-1321

S1659-13212025000100035

10.15517/3v3jz593

Ecuador

Cuba

00 12 2025

00 12 2025

36 1

2022 11 3 3

2023 2023 2 2

49-54

2022 11 2 2

354-73

2022 17 3 3

2024 10 2 2

83-8

2023

Association of Official Analytical Chemists

2023 a 22nd

Association of Official Analytical Chemists.

2023 b 22nd

Association of Official Analytical Chemists.

2023 c 22nd

Association of Official Analytical Chemists.

2023 d

Association of Official Analytical Chemists.

2023 e 22

2021 6 1 1

33-8

2023 102 5 5

2015 8 11 11

2246-55

2019 75 4 4

609-20

2020 73 3 3

9333-40

2021 45 7 7

2023 176

2018 143

114-8

2019 102

254-9

2021 2021 1 1

2022 192

2023 79 3 3

513-33

2023 182

2022 193

2021 27 1 1

73-83

2022 42 2 2

208-13

2024 15 11 11

151-8

2020

2022 11 7 7

2022 169

2017 133

159-65

2023 11

Instituto Ecuatoriano de Normalización 1985

Instituto Ecuatoriano de Normalización 2012

2021 10 12 12

2022 26

323-46

2021 56 12 12

6142-56

2019 15 5 5

358-63

2017 37 3 3

360-7

2018 97 12 12

4442-9

2001

2023 7

2021 10 6 6

2019 98 1 1

491-9

2019 9 1 1

2013

2022 42

2021 10 5 5

2021 24

2022 1 11 11

41-8

2018 38 1 1

162-71

2023 188

2023 36 10 10

1596-603

2021 363

2020 9 10 10

2023 189

2021 19 1 1

457-64

2022 48

2024 35

2022 30

2021 351

2019 98 12 12

6921-30

2022

179-220