1,4-二氧六环气体检测管119U 1,4-DIOXANE 20-500ppm Tube No. 1. PERFORMANCE 1) Measuring range :20-500 ppm Number of pump strokes 1(100ml) 2) Sampling time :1.5 minutes/1 pump stroke 3) Detectable limit :5 ppm 4) Shelf life :2 years 5) Operating temperature :0～40℃ 6) Temperatu...
The detection limit was 0.050.10 mg/kg, the linear range was large, and the correlation coefficient was 0.99. The method is suitable for quality control in food production and surveillance.doi:10.1016/S0026-265X(99)00026-0Weiqiang Guo
1,4-二氧己环气体检测管139SB 1,4-DIOXANE (+)C4H8O2 0.05-2.5% Tube No. 1. PERFORMANCE 1) Measuring range :0.05-2.5% Number of pump strokes 2(200ml) 2) Sampling time :3 minutes/2 pump strokes 3) Detectable limit :10 ppm 4) Shelf life :3 years ...
EPA化学物质信息1,4-Dioxane (123-91-1) 1,4-二氧六环 用途与合成方法 概述 1,4-二氧六环是含有两个氧杂原子的六元杂环化合物,其呈无色可燃的液体状,微有醚样气味。对光敏感。蒸气在空气易吸收氧形成爆炸性的过氧化物。爆炸极限1.97%-22.5%(体积),在蒸馏时要用还原剂处理。熔点11.8℃,沸点101℃(750毫米...
level of 1μg/ml by GC-FID.Wala-Jerykiewicz and Szymanowski (1998)proposed a method ofheadspace GCusingdimethylformamideas solvent. The detection limit obtained was 2 μg/g andwas applied for shampoos and body lotions.Wanget al.(2002)examined the contents of 1,4-dioxane in shampoo and ...
4-dioxane, among them the ethyl acetate was found to be the most efficient extracting solvent. This method has offered excellent quality parameters for instance linearity (R2 > 0.9991), limit of detection (LOD, 0.00065-0.00091 µg/mL), limit of quantification (LOQ, 0.00217–0.00...
1,4-Dioxane, with the chemical formula C4H8O2 and CAS registry number 123-91-1, is a compound known for its use as a solvent and stabilizer in various industries. This colorless liquid, also referred to as Diethylene Ether, is characterized by its cyclic structure containing two oxygen atoms...
New Jersey drinking water advisors are proposing the state establish the nation’s strictest drinking water limit for the emerging contaminant 1,4-dioxane, following in the footsteps of New York’s first-in-the-nation standard and after EPA pushed off a decision to regulate the ubiquitous ...
Synonyms: glycolide,1,4-Dioxane-2,5-dione CAS: 502-97-6 EC number: 207-954-9 MF: C4H4O4 MW: 116.07 SECTION 4: First aid measures Description of first aid measures General advice Consult a physician. Show this safety data sheet to the doctor in attendance. ...
Standard solutions of 1,4-dioxane were prepared at concentrations of 0, 5.8, 29.2 and 92.1 mg l−1. The detection limit was determined to be 0.17 mg l−1. For the heat-killed treatment, the 1,4-dioxane concentration was determined after an 8-h incubation. The inorganic ...