Questões de Concurso Sobre inglês
Foram encontradas 26.102 questões
"To ensure optimal ionization of biomolecules, use a capillary voltage between 3.5 and 4.5kV. The nebulizer gas should be set at 50 psi, and the drying gas should be heated to 350°C. Maintain a source temperature of 120°C. For larger molecules, increasing the capillary voltage to 5kV may improve ionization efficiency."
Com base nas informações fornecidas, a recomendação sobre o ajuste da tensão do capilar é:
"For optimal detection of compounds absorbing in the 200 - 300 nm range, set the wavelength between 220 - 230 nm . For compounds with stronger absorbance above 300 nm, use wavelengths around 280 - 290 nm. Adjust the wavelength to maximize the signal intensity while avoiding excessive noise."
Com base no trecho citado, a instrução CORRETA para o ajuste do comprimento de onda em CLAE é:
( ) Professor Naveed Sattar believes the findings are ready to change clinical practice immediately.
( ) The weight-loss drugs act like a natural hormone to reduce feelings of hunger.
( ) Genetic factors play a more significant role in weight loss than age or sex.
The correct order of the parentheses, from top to bottom, is:
I. Most weight-loss drugs are being bought privately through online pharmacies.
II. People with European ancestry have a lower percentage of the variant than African Americans.
III. Experts believe that factors like age and sex also impact how the drugs work.
Which ones are correct?
