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English to Spanish - Rates: 0.05 - 0.07 USD per word / 20 - 35 USD per hour Spanish to English - Rates: 0.05 - 0.07 USD per word / 20 - 35 USD per hour
Spanish to English: Materials and Methods (paper fragment)
Source text - Spanish MATERIALES Y METODOS
Todos los análisis se realizaron por triplicado, usándose reactivos de calidad analítica.
Para la determinación de pH se trabajó con un pHmetro BECKMAN con un electrodo de vidrio combinado ORION. Los extractos de suelo en agua fueron 1:5.
La extracción del fósforo se realizó siguiendo el método de Olsen de dos formas diferentes: a) un agitador Shaker ROLCO y b) una cuba ultrasónica TESTLAB mod. TB010, de 10,4 litros de capacidad con una frecuencia de trabajo de 34 Khz y una potencia ultrasónica de 300 W.
Para la detección se aplicó el método de Murphy & Riley, 1962, del Azul de Molibdeno (1), utilizando ácido ascórbico como reductor. Se midió la absorbancia a una longitud de onda = 660 nm, en un espectrofotómetro UV-visible UNICAM.
Se trabajó con muestras de suelo de la Provincia de Santiago del Estero, Argentina (de zonas con y sin riego), las que fueron preparadas para su análisis según normas vigentes.
A partir de KH2PO4 se preparó una solución stock de 2,5 g P mL-1, y por dilución se prepararon soluciones de 0.1, 0.2, 0.5, 1.0 y 2.0 g P mL-1 que fueron utilizadas para la calibración.
Translation - English MATERIALS AND METHODS
All analyses were triply performed using analytical quality reactives.
For pH determination a BECKMAN pHmeter with a combined ORION glass electrode was used. The soil extracts in water were 1:5.
Phosphorous extraction was accomplished following the Olsen method in two ways: a) a ROLCO shaker and b) a TESTLAB ultrasonic washer mod. TB010, with 10,4 liters capacity at a working frequency of 34 Khz and ultrasonic potency of 300 W.
For detection, the Murphy & Riley, 1962, Molybdenum Blue Method was applied (1), using ascorbic acid as reducer. The wavelength = 660 nm absorption was measured in a UNICAM UV- visible spectrophotometer
The work was performed on soil samples from the province of Santiago del Estero, Argentina (of risk and risk-free areas) which were prepared for analysis according to regulations in force.
A stock solution of 2,5 g P mL-1 was prepared from KH2PO4, and by dilution 0.1, 0.2, 0.5, 1.0 and 2.0 g P mL-1 solutions were prepared to be used for calibration.
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Translation education
Graduate diploma - National University of Santiago del Estero
Experience
Years of experience: 29. Registered at ProZ.com: Feb 2003.
Traductora Literaria Técnica y Científica del Inglés
Licenciada en Inglés
Keywords: patents, reverse engineering, electronic and electric engineering, mechanical and electromechanical engineering, programming manuals among other related scientific and technical topics.
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