Preparation by low-temperature nonthermal plasma of graphite fiber and its characteristics for solid-phase microextraction

Luo, Fan; Wu, Zucheng; Tao, Ping; Cong, Yanqing

doi:10.1016/j.aca.2008.10.025

Cited by 12 publications

(1 citation statement)

References 28 publications

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“…Relative recoveries obtained for the spiked real aqueous samples (at 50 ng L − 1 ) in the range of 94-102% (Table 3), indicating no matrix effect. Table 4 compares analytical data obtained in the current study with previously works, showing that the time of analysis is rather lower and comparable LODs were obtained [24][25][26][27].…”

Section: Optimization Of Sampling Conditionsupporting

confidence: 76%

Aniline-naphthylamine copolymer as sorbent for needle trap device

Roostaie¹,

Haddad²,

Mohammadiazar

2022

Preprint

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In current work, aniline-naphthylamine copolymers were prepared using electrochemical technique and then applied as a new sorbent for needle trap extraction of some volatile organic compounds from aqueous solution in headspace mode. The scanning electron microscopy and infrared spectrometry techniques were used to characterization of synthesized aniline-naphthylamine copolymers of aniline and naphthylamine. The results showed that aniline-naphthylamine copolymer compared to unmodified polymer, has higher porosity and non-uniform structures. The significant parameters of the sorbent preparation and extraction process such as the type and concentration of polymer, time and voltage of electrochemical deposition, the extraction time and temperatures and salt content were studied and optimized. The modified device is sensitive and fast providing good analytical parameters so that the detection limit of 0.9-2 ng L− 1 and the quantification limit of 3–7 ng L− 1 along with equilibrium time of 20 minutes were obtained. The linearity of method was obtained in the range of 15-1500 ng L− 1 with R2 > 0.9996. The method repeatability was considered at 50 ng L− 1 and relative standard deviations of 3–5% were obtained. To finish, the performance of proposed device was studied via the extraction of selected analytes in real water samples and the relative recovery values were found to be in the range of 94–102%, showing no matrix effect.

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Section: Optimization Of Sampling Conditionsupporting

confidence: 76%