使用含有活性过氧化物的清洁溶液对甲基胺和以弗得林进行化学污染清除
Alexandra Mayer1, Mansa Nair1, Gordon Miskelly1
1School of Chemical Sciences, University of Auckland, Auckland, New Zealand.
Forensic science international
|September 10, 2023
概括
基于过氧化的清洁剂有效降解甲基胺和乙,这是非法药物制造中的常见污染物. 这项研究确定了关键的氧化产物和氧化途径,有助于对清除污染工作的风险评估.
科学领域:
- 环境化学环境化学
- 法医科学 法医科学 法医科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 非法制造和使用甲基胺导致重大财产污染.
- 基于过氧化 (H2O2) 的产品因其对化学和生物剂的有效性而得到认可.
- 这些H2O2产品环保且具有成本效益,因此适用于工业污染清除.
研究的目的:
- 通过使用商用基于H2O2的产品来研究甲基胺和以弗得林化物的氧化去污染.
- 为了确定降解动力学,并确定主要的氧化产物.
- 为了阐明这些兴奋剂在去污染过程中的分解途径.
主要方法:
- 使用了Bio-Oxygen® Chem Decon,这是一个商业上可用的基于H2O2的净化溶液.
- 采用伪第一阶动力学来分析降解率.
- 使用气体染色学-质谱学 (GC-MS) 和液体染色学-质谱学 (LC-MS) 识别的氧化产物.
主要成果:
- 甲基胺和乙二醇分别以 (1.9 ± 0.4) × 10-2 分钟-1 和 (2.2 ± 0.3) × 10-2 分钟-1 的伪第一阶速降解.
- 发现的主要氧化产物是乙氧化物 (来自甲基胺) 和甲 (来自乙).
- 含N氧的中间体表明一种类似于含有黄素的单氧酶酶的N氧化分解途径.
结论:
- 基于H2O2的净化有效地分解甲基胺和乙.
- 了解已识别的分解途径和产品对于评估暴露风险至关重要.
- 进一步的研究应该集中在这些反应产品的行为和持久性上,以改进污染清除策略.
相关概念视频
01:30Methods of Sterilization II: Chemical Methods
6.5K
In healthcare, the chemical method of sterilization uses chemical sterilants to treat surgical instruments and medical supplies to help prevent the transmission of infectious pathogens to patients. Due to heat sensitivity, most medical supplies and equipment should not be exposed to high temperatures. These parts include rubber, plastic, glass, and other similar elements.
Using chemical sterilization rather than heat to clean out equipment is recommended. It eradicates and removes all bacteria,...
Using chemical sterilization rather than heat to clean out equipment is recommended. It eradicates and removes all bacteria,...
6.5K
01:27Chemical Agents for Microbial Control
54
Chemicals play important roles in controlling microbial growth by targeting microbial structures and functions as sanitizers, antiseptics, disinfectants, and sterilants.Alcohols are commonly used sanitizers, effectively disrupting lipid membranes, which compromises cell integrity. They are also used as antiseptics and disinfectants due to their rapid action and versatility.Phenols and their derivatives phenolics , known for denaturing proteins and disrupting cell membranes, are particularly...
54
02:23Autoxidation of Ethers to Peroxides and Hydroperoxides
7.7K
Ethers represent a class of chemical compounds that become more dangerous with prolonged storage because they tend to form explosive peroxides when standing in the air. Autoxidation is the spontaneous oxidation of a compound in air. In the presence of oxygen, ethers slowly oxidize to form hydroperoxides and dialkyl peroxides.
7.7K
01:28Adrenergic Agonists: Mixed-Action Agents
775
Mixed-action adrenergic agonists, like ephedrine and pseudoephedrine, directly and indirectly affect adrenergic receptors. These agents stimulate adrenoceptors and indirectly release stored neurotransmitters, amplifying the adrenergic response.
Ephedrine and pseudoephedrine lack a catecholamine group, making them less susceptible to degradation by metabolic enzymes. They have increased oral bioavailability and lipophilicity, resulting in a longer duration of action. Their response is reduced by...
Ephedrine and pseudoephedrine lack a catecholamine group, making them less susceptible to degradation by metabolic enzymes. They have increased oral bioavailability and lipophilicity, resulting in a longer duration of action. Their response is reduced by...
775
01:33Carboxylic Acids to Methylesters: Alkylation using Diazomethane
2.2K
Carboxylic acids react with diazomethane in an ether solvent via alkylation at the carboxylate oxygen atom to give methyl esters of the corresponding acid with excellent yields.
2.2K
01:26Enhanced Elimination of Poison
539
Poison can be effectively removed from the gastrointestinal (GI) tract through various decontamination procedures.
Antidotes serve a crucial role in counteracting the effects of poison by inhibiting enzymes responsible for producing harmful drug metabolites. In some cases, these toxic metabolites can be neutralized by endogenous cosubstrates, which are maintained at specific concentrations to prevent interaction with cellular macromolecules and subsequent cell death.
Renal excretion is the...
Antidotes serve a crucial role in counteracting the effects of poison by inhibiting enzymes responsible for producing harmful drug metabolites. In some cases, these toxic metabolites can be neutralized by endogenous cosubstrates, which are maintained at specific concentrations to prevent interaction with cellular macromolecules and subsequent cell death.
Renal excretion is the...
539