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Updated: Jul 9, 2025

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实验阶段图及其对亚微米2-甲基酸和硫酸气溶颗粒的时间演变

Qishen Huang1,2, Kiran R Pitta1, Kayla Constantini1

  • 1Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, USA. maf43@psu.edu.

Physical chemistry chemical physics : PCCP
|December 6, 2023
PubMed
概括

动力学,而不是热力学,解释了为什么微小的气溶颗粒在较低的湿度下分离成液态相. 较长的平衡时间表明微小粒子表现得像较大的粒子一样,影响气候模型.

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Atomic Absorption Spectroscopy: Atomization Methods01:25

Atomic Absorption Spectroscopy: Atomization Methods

Atomic Absorption Spectroscopy (AAS) atomizes samples through flame atomization or electrothermal atomization. Flame atomization typically involves a nebulizer and spray chamber assembly to combine the sample with a fuel–oxidant mixture, creating a fine aerosol mist that enters a burner. Typically, the fuel and oxidant are combined in an approximately stoichiometric ratio. However, for atoms that are easily oxidized, a fuel-rich mixture may be more advantageous. Only about 5% of the...
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