Abstract This study presents a thorough thermal analysis of the dead remains of mosquitoes, in order to unravel the composition of vapors evolved from the bug zappers decimating them. Analytical pyrolysis-gas chromatograph/mass spectrometry (Py-GC/MS) and pyrolysis-Fourier transform infrared (Py-FTIR) spectrometric techniques were used to understand the pyrolysate composition and their time evolution from mosquitoes. Thermogravimetric mass loss data obtained at different heating rates (5–30 °C min−1) were used to determine the variation of apparent activation energy with conversion using isoconversional methods of Friedman, Flynn-Wall-Ozawa and Kissinger–Akahira–Sunose. The apparent activation energies varied in the range of 90–200 kJ mol−1. Increase in pyrolysis temperature from 400 to 700 °C resulted in the formation of alcohols, indoles, nitriles, monoaromatics and alkenes in higher selectivities, while the selectivity to long chain carboxylic acids decreased with increasing temperature. The formation of various organics was corroborated by the evolution of functional groups at short timescales. The significant nitrogen content in the char (∼9.7 wt.%) was evidenced in the form of N H and N O groups in the FTIR spectrum. The deconstruction of proteins and fatty acids present in mosquito was similar to that of microalgae in terms of the pyrolysis products.

中文翻译：

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通过热解-FTIR 和热解-GC/MS 对富氮蚊种进行分析快速热解

摘要 本研究对蚊子的尸体进行了彻底的热分析，以解开消灭蚊子的灭虫器所产生的蒸气的成分。分析热解-气相色谱/质谱 (Py-GC/MS) 和热解-傅立叶变换红外 (Py-FTIR) 光谱技术用于了解蚊子的热解产物组成及其时间演变。使用 Friedman、Flynn-Wall-Ozawa 和 Kissinger-Akahira-Sunose 的等转化方法，在不同加热速率（5-30 °C min-1）下获得的热重质量损失数据用于确定表观活化能随转化率的变化。表观活化能在 90-200 kJ mol-1 的范围内变化。热解温度从 400 °C 增加到 700 °C 导致醇、吲哚、腈、单芳烃和烯烃的选择性较高，而对长链羧酸的选择性随温度升高而降低。各种有机物的形成被短时间尺度的官能团的演化所证实。FTIR 光谱中以 NH 和 NO 基团的形式证明了炭中的显着氮含量（~9.7 wt.%）。就热解产物而言，蚊子中存在的蛋白质和脂肪酸的解构与微藻的解构相似。%) 在 FTIR 光谱中以 NH 和 NO 基团的形式证明。就热解产物而言，蚊子中存在的蛋白质和脂肪酸的解构与微藻的解构相似。%) 在 FTIR 光谱中以 NH 和 NO 基团的形式证明。就热解产物而言，蚊子中存在的蛋白质和脂肪酸的解构与微藻的解构相似。