Porosity — High efficient solid-phase microextraction based on a covalent organic framework for determination of trifluralin and chlorpyrifos in water and food samples by GC-CD-IMS

Measurement evidence

Porosity

High efficient solid-phase microextraction based on a covalent organic framework for determination of trifluralin and chlorpyrifos in water and food samples by GC-CD-IMS · Tabibi A., Jafari M.T. · Food Chemistry · 2022 · 131527

1 measurement group · 5 results

Reported values remain attached to the sample, method, conditions, extraction quality and source location that produced them.

Nitrogen adsorption-desorption isotherm; BET and BJH analyses

Gas sorption and porosity

Synthesised PTA/TAPTT COF powder · Powder

N2 adsorption/desorption measured at 77 K on Belsorp-mini II analyzer.

Temperature: 77
Atmosphere: nitrogen
Geometry: powder sample
Context: pristine COF powder
Measurement source: p002-p004 · 2.2. Instrumentation; 3.1. Characterization · Fig. S6

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
BET mean pore diameter	16.802 nm	—	—	Text Exact Reported	p004 · 3.1. Characterization · Fig. S6
BET surface areaMarked as a best value within this paper	157.29 m2/g	—	—	Text Exact Reported	p004 · 3.1. Characterization · Fig. S6
BET total pore volume	0.6607 cm3/g	—	—	Text Exact Reported	p004 · 3.1. Characterization · Fig. S6
BJH average pore volume	0.656 cm3/g	—	—	Text Exact Reported	p004 · 3.1. Characterization · Fig. S6
BJH pore diameter	1.22 nm	—	—	Text Exact Reported	p004 · 3.1. Characterization · Fig. S6