Karl Fisher and distillation are not suitable methods. pH =2.0
Theoretically in my samples must be 65-80 % of water.
I know how to measure VOA. I need to measure water content.
Thank you!
I have come across a method based on methyl alcohol in My Agricultural Information Bank, agriinfo.in/soil moisture.Here heating is not required but one has to measure specific gravity of water alcohol mixture.But details are few.
Tal vez se pueda realizar en distintas etapas:
1° paso: evaporar los ácidos : condensarlos (si es posible) y analizarlos de forma independiente de la fase líquida. 2° paso: analizar la fase acuosa con métodos convencionales 3° paso: ensamblar los datos de 1 y 2 de acuerdo a tablas de presión y temperatura.
If you have just water + VOA in your system you can take a sample of this solution and measure the VOA by your technique ( mass of simple (water + VOA) = masse of VOA + mass of water.
or, you can use a separation method like a membrane for to separate water from VOA like for example reverse osmosis
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