Seasonal Variation of Legacy Organochlorine Pesticides (OCPs) from East Asia to the Arctic Ocean

Polycyclic Aromatic Hydrocarbons in the Marine Atmosphere from the Western Pacific to the Southern Ocean: Spatial Variability Gas/Particle Partitioning, and Source Apportionment

“…We developed a novel air samplers aimed to analyze of ultra-trace organic compounds. 7,8 The air SPE sampler consists of an electronically controlled system, an aspirating blower providing delivery power, a particle sampling head filled with glass fiber filter (GFF) (Whatman, 0.7 μm, 142 mm diameter), and an adsorption column filled with 42 g of Amberlite XAD-2 resin to adsorb ultra-trace organic compounds.…”

“…The ISIU system consists of an ultrasonic instrument with an ultrasonic probe tip and a custom stainless steel ultrasonic cannula tube with a stainless steel cap clamp hole for body column ultrasound processing. 7,8 All sample collection and elution processing is performed in a complete stainless steel sealed environment, which prevents contamination from external environmental media. During ultrasonic processing, the first step is putting the body column into the customized ultrasonic casing tube, then put the ultrasonic probe head into the cavity of the body column.…”

“…Soxhlet extraction is the commonly used elution method, which requires 24 hours or longer. ISIU treatment provides a new and more advanced method for ultratrace analysis of organic compounds, and have been widely used to determin legacy organochlorine pesticides, 8,9 current-use pesticides, 7 per-and poly fluoroalkyl substances. 10…”