Determinación de micronutrientes en hojas de café
Higher copper contamination on leaf tissue results from copper sulfate sprays. Plant materials so contaminated often require adoption of special analytical procedures. A revision of colorimetric routine techniques for individual determination of micronutrients was found necessary. Manganese and iron were firstly considered. A procedure based on the periodate method proved suitable for manganese and a thiocyanate technique with ethyl acetate as the extractant in the presence of acetone, was introduced for iron determination. From a test sample of ground coffee-tree leaves highly contaminated with copper sulfate, nitro-sulfuric-perchloric acid digests were obtained, on wich repeated measurements for manganese and iron estimation were carried out for reproductibility studies
Saved in:
| Main Authors: | , |
|---|---|
| Format: | biblioteca |
| Published: |
Oct-
|
| Subjects: | OLIGOELEMENTOS, CONTENIDO DE NUTRIENTES, HIERRO, MANGANESO, HOJAS, METODOS, TIOCIANATOS, CONTAMINANTES, SULFATO DE COBRE, MICRONUTRIENTES, COLORIMETRIA, |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| id |
KOHA-OAI-BVE:72460 |
|---|---|
| record_format |
koha |
| spelling |
KOHA-OAI-BVE:724602020-02-03T21:39:46ZDeterminación de micronutrientes en hojas de café 68704 Fragoso, M.A.C. 67290 Ferreira, L.A.B. Oct-Dic 1967Higher copper contamination on leaf tissue results from copper sulfate sprays. Plant materials so contaminated often require adoption of special analytical procedures. A revision of colorimetric routine techniques for individual determination of micronutrients was found necessary. Manganese and iron were firstly considered. A procedure based on the periodate method proved suitable for manganese and a thiocyanate technique with ethyl acetate as the extractant in the presence of acetone, was introduced for iron determination. From a test sample of ground coffee-tree leaves highly contaminated with copper sulfate, nitro-sulfuric-perchloric acid digests were obtained, on wich repeated measurements for manganese and iron estimation were carried out for reproductibility studiesHigher copper contamination on leaf tissue results from copper sulfate sprays. Plant materials so contaminated often require adoption of special analytical procedures. A revision of colorimetric routine techniques for individual determination of micronutrients was found necessary. Manganese and iron were firstly considered. A procedure based on the periodate method proved suitable for manganese and a thiocyanate technique with ethyl acetate as the extractant in the presence of acetone, was introduced for iron determination. From a test sample of ground coffee-tree leaves highly contaminated with copper sulfate, nitro-sulfuric-perchloric acid digests were obtained, on wich repeated measurements for manganese and iron estimation were carried out for reproductibility studiesOLIGOELEMENTOSCONTENIDO DE NUTRIENTESHIERROMANGANESOHOJASMETODOSTIOCIANATOSCONTAMINANTESSULFATO DE COBREMICRONUTRIENTESCOLORIMETRIACafé (Perú) |
| institution |
IICA |
| collection |
Koha |
| country |
Costa Rica |
| countrycode |
CR |
| component |
Bibliográfico |
| access |
En linea |
| databasecode |
cat-sibiica |
| tag |
biblioteca |
| region |
America Central |
| libraryname |
Sistema de Bibliotecas IICA/CATIE |
| topic |
OLIGOELEMENTOS CONTENIDO DE NUTRIENTES HIERRO MANGANESO HOJAS METODOS TIOCIANATOS CONTAMINANTES SULFATO DE COBRE MICRONUTRIENTES COLORIMETRIA OLIGOELEMENTOS CONTENIDO DE NUTRIENTES HIERRO MANGANESO HOJAS METODOS TIOCIANATOS CONTAMINANTES SULFATO DE COBRE MICRONUTRIENTES COLORIMETRIA |
| spellingShingle |
OLIGOELEMENTOS CONTENIDO DE NUTRIENTES HIERRO MANGANESO HOJAS METODOS TIOCIANATOS CONTAMINANTES SULFATO DE COBRE MICRONUTRIENTES COLORIMETRIA OLIGOELEMENTOS CONTENIDO DE NUTRIENTES HIERRO MANGANESO HOJAS METODOS TIOCIANATOS CONTAMINANTES SULFATO DE COBRE MICRONUTRIENTES COLORIMETRIA 68704 Fragoso, M.A.C. 67290 Ferreira, L.A.B. Determinación de micronutrientes en hojas de café |
| description |
Higher copper contamination on leaf tissue results from copper sulfate sprays. Plant materials so contaminated often require adoption of special analytical procedures. A revision of colorimetric routine techniques for individual determination of micronutrients was found necessary. Manganese and iron were firstly considered. A procedure based on the periodate method proved suitable for manganese and a thiocyanate technique with ethyl acetate as the extractant in the presence of acetone, was introduced for iron determination. From a test sample of ground coffee-tree leaves highly contaminated with copper sulfate, nitro-sulfuric-perchloric acid digests were obtained, on wich repeated measurements for manganese and iron estimation were carried out for reproductibility studies |
| format |
|
| topic_facet |
OLIGOELEMENTOS CONTENIDO DE NUTRIENTES HIERRO MANGANESO HOJAS METODOS TIOCIANATOS CONTAMINANTES SULFATO DE COBRE MICRONUTRIENTES COLORIMETRIA |
| author |
68704 Fragoso, M.A.C. 67290 Ferreira, L.A.B. |
| author_facet |
68704 Fragoso, M.A.C. 67290 Ferreira, L.A.B. |
| author_sort |
68704 Fragoso, M.A.C. |
| title |
Determinación de micronutrientes en hojas de café |
| title_short |
Determinación de micronutrientes en hojas de café |
| title_full |
Determinación de micronutrientes en hojas de café |
| title_fullStr |
Determinación de micronutrientes en hojas de café |
| title_full_unstemmed |
Determinación de micronutrientes en hojas de café |
| title_sort |
determinación de micronutrientes en hojas de café |
| publishDate |
Oct- |
| work_keys_str_mv |
AT 68704fragosomac determinaciondemicronutrientesenhojasdecafe AT 67290ferreiralab determinaciondemicronutrientesenhojasdecafe |
| _version_ |
1756057655477010433 |