Method and apparatus for determining water content of hygroscopic fluids

A fluid dispensing device comprising:

• a housing comprising
• a sample port;
• a hygroscopic fluid cooler positioned below the sample port, wherein the hygroscopic fluid cooler is an insulated vessel comprising a hygroscopic fluid;
• a removable capping device attached to the hygroscopic fluid cooler,
• a thermocouple device disposed through the removable capping device and in contact with the hygroscopic fluid, the thermocouple device configured to provide measurement of a freezing point temperature of the hygroscopic fluid;
• a thermoelectric cooler configured to cool the hygroscopic fluid in the hygroscopic fluid cooler to the freezing point of the hygroscopic fluid and configured to heat the hygroscopic fluid in the hygroscopic fluid cooler to above the freezing point of the hygroscopic fluid;
• and
• software disposed in a memory of the fluid dispensing device, the software in electrical communication with the thermocouple device and the thermoelectric cooler;
• wherein the software is configured to receive the freezing point of the hygroscopic fluid from the thermocouple device and determine a water content of the hygroscopic fluid from the freezing point of the hygroscopic fluid.