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Acta Chromatographica
Authors: M. Pacenti, S. Dugheri, R. Gagliano-Candela, G. Strisciullo, E. Franchi, F. Degli Esposti, N. Perchiazzi, P. Boccalon, G. Arcangeli, and V. Cupelli

Summary

2-Chloroacetophenone (CA) is widely used as tear gas by law-enforcement agents, and by civilians for personal protection. Crimes involving robbery and rape using tear gas sprays have recently increased. Experimental and in-field evaluations have been performed to validate use of solid-phase microextraction (SPME) with a porous fiber for sampling and analysis of CA in air before analysis by fast gas chromatography-mass spectrometry equipped with a new device called a multi-fiber system. CA vapor was generated by use of a syringe pump in a dynamic system in which temperature, relative humidity, and air velocity were monitored. The theoretical sampling rate for time-weighted average and rapid-SPME were, furthermore, estimated by use of the Fuller-Schettler-Giddings diffusion coefficient and the theory of heat transfer, respectively, and were in accordance with experimental values. Concentrations of CA were analyzed in a military store containing tear gas canisters, to evaluate the risk. The results obtained in this field study showed values ranging from 0.206 to 2.46 mg m−3.

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Guidelines for the Care and Use of Laboratory Animals. The rats were acclimated in the laboratory for 1 week prior to the experiments, housed in separate cages at a temperature of 23 ± 2 °C with a 12 h light–dark cycle and a relative humidity of 50%, and with

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Acta Chromatographica
Authors: Jong-Woo Jeong, Yun-Hwan Seol, Hun-Chan Hyun, Hye-Rim Kim, Jong-Hwa Lee, Young-Dae Gong, Nam Sook Kang, and Tae-Sung Koo

relative humidity of 40–60%. Prior to dosing, animals were fasted for 14 h but were allowed access to water. After dosing, food was provided after a further 4 h. Supinoxin was dissolved in a mixture containing 10% dimethyl sulfoxide, 40% polyethylene glycol

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.5. Pharmacokinetic Analysis Twelve male SD rats (200 ± 20 g), which were 7–8 weeks old, were provided by the Experimental Animal Center of Wenzhou Medical University. Rats were placed at a relative humidity of 55 ± 10% and a temperature of 22 ± 2 °C. The

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Male Sprague–Dawley (SD) rats (210–250 g) were supplied by Samtako (Incheon, Korea). Prior to carrying out experiments, the rats were housed at a temperature of 22 ± 2 °C and relative humidity of 50 ± 10%, under a 12-h light–dark cycle for 7 days, with

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experiments. The animals were housed in 6 cages, 4 animals per cage, under a normal 12 h/12 h light/dark schedule with the lights on at 07:00 a.m. They were kept at room temperature (23 ± 2 °C) with a relative humidity of 55 ± 5% and given standard food and

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experiments, housed in separate cages at a temperature of 23 ± 2 °C with a 12 h light–dark cycle and a relative humidity of 50%, as well as free access to standard diet and water. All the rats were fasted for 12 h before the experiments with free access to

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Journal of Thermal Analysis and Calorimetry
Authors: V. Sydorchuk, W. Janusz, S. Khalameida, E. Skwarek, J. Skubiszewska-Zięba, R. Leboda, and V. Zazhigalov

-zirconium phosphate nanocomposite membranes with enhanced stability of proton conductivity at medium temperature and high relative humidity . Electrochim Acta 52 : 8125 – 8132 10.1016/j.electacta.2007.07.019 . 11

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/w) of baker's yeast which was infested by insects. The rearing glass containers were maintained in the dark cabinet of an incubator at a constant temperature of 30 ± 1 °C and 70% relative humidity. Only adults were used for the test

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Acta Chromatographica
Authors: Su Lian-Lin, Cheng Xue, Ding Xi-Yan, Mao Chun-Qin, Lu Tu-Lin, Hao Min, Li Ping, and Qin Sirui

, weighing between 220 and 250 g, and approximately 3 months of age. They were maintained under a 12 h light/dark cycle at a controlled temperature (25 °C and 55% to 60% relative humidity), with free access to food and tap water until the day of the

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