Accidental poisoning can result from using undiluted concentrated nicotine when mistakenly used as prepared e-liquid. Accidental poisoning can result from using undiluted concentrated nicotine when mistakenly used as prepared e-liquids. Safrole can be detected in undiluted liquid beverages and pharmaceutical preparations by high-performance liquid chromatography. It is a colourless gas that cannot persist undiluted. Urine may be toxic to plants if applied to growing areas undiluted. Elemental iodine (I) is toxic if taken orally undiluted. Undiluted AEs can cause dermal or eye irritation. When undiluted, it is sometimes called "glacial acetic acid". The fish were exposed to aerated, undiluted, treated effluent. It was perceived as uncultured to drink undiluted wines at gatherings. If taken undiluted by mouth, GBL can cause esophageal and gastro-intestinal irritation. The ancient Greeks thought it was "barbaric" to drink undiluted wine. The Khmer Rouge regarded traditional education with undiluted hostility. The petty officers were served first, and entitled to take their rum undiluted. It is a gas that cannot persist undiluted.