Water and hydrofluoric acid cause the electrolyte to decompose, and as the water content in the electrolyte increases, the SEI layer becomes thicker and rich in lithium carbonate. This affects the battery with increased battery resistance, safety problems and loss of capacity. Therefore, limit values of 20 ppm for water and 50 ppm for HF content have been set for electrolytes. In this work, the electrolyte was analyzed using HF and KF titration to measure the water and HF content over a period of 30 days. The experiments show that the HF content increases in all samples when they are not stored and sampled under argon atmosphere, while the HF content remains stationary under argon conditions. In addition, the water content remains below the limit value in all samples with LiPF6 (conducting salt). When no conducting salt is present, the HF content remains stationary and the water content increases. We conclude that in the presence of LiPF6 in the electrolyte, an increasing water content is not detectable due to the fast reaction to HF. In addition, water enters the vessel during sampling if the sample is not stored under argon. This means that sampling and titration measurements outside the argon atmosphere will lead to false positive results.