Analysis of testosterone in human urine using molecularly imprinted solid‐phase extraction and corona discharge ion mobility spectrometry

Mirmahdieh, Shiva; Mardihallaj, A.; Hashemian, Zahra; Razavizadeh, Jalal. S.; Ghaziaskar, Hassan S.; Khayamian, Taghi

doi:10.1002/jssc.201000583

Cited by 19 publications

(8 citation statements)

References 31 publications

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“…Meanwhile, the operative error is hard to be avoided. In order to simplify the pretreatment procedure and improve the method sensitivity, some new techniques such as molecular imprinted polymer solid phase extraction (SPE) [25,26], solid phase microextraction (SPME) [27], stir bar microextraction (SBME) [28] and online SPE [29,30], have also been applied to determine AAS in diverse biological samples.…”

Section: Introductionmentioning

confidence: 99%

Automated and sensitive determination of four anabolic androgenic steroids in urine by online turbulent flow solid-phase extraction coupled with liquid chromatography–tandem mass spectrometry: A novel approach for clinical monitoring and doping control

Guo

Shao²,

Liu

et al. 2014

Talanta

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Section: Introductionmentioning

confidence: 99%

Automated and sensitive determination of four anabolic androgenic steroids in urine by online turbulent flow solid-phase extraction coupled with liquid chromatography–tandem mass spectrometry: A novel approach for clinical monitoring and doping control

Guo

Shao²,

Liu

et al. 2014

Talanta

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“…It is a potentially useful technique for determining some chemical compounds such as explosives, pesticides, narcotics, and various environmental pollutants . The advantages of IMS are portability, high sensitivity, low detection limit, and low cost .…”

Section: Introductionmentioning

confidence: 99%

Sol–gel/nanoclay composite as a sorbent for microextraction in packed syringe combined with corona discharge ionization ion mobility spectrometry for the determination of diazinon in water samples

Saraji

Jafari

Amooshahi

2017

J of Separation Science

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In this work, the microextraction in packed syringe technique combined with corona discharge ion mobility spectrometry was used for determining diazinon in water samples. A new porous composite of nanoclay and polysiloxane was prepared using a sol-gel process. An amount of 2.0 mg of the sorbent was packed in a 250 μL syringe and used for extraction. A volume of 2 mL of the sample was passed through the sorbent bed, and the entrapped analyte was eluted by 25 μL of methanol. Important parameters influencing the extraction performance were investigated. Under optimum experimental conditions, the detection limit for diazinon was 0.07 ng/mL. The intra- and inter-day relative standard deviations were 5.0 and 12.3%, respectively. The calibration curve was linear in the concentration range from 0.2 to 20.0 ng/mL (r = 0.999). The applicability of the method was demonstrated by analyzing spiked real water samples and the spiking recoveries were in the range of 95 to 106%.

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“…16 In the clinical eld, molecularly imprinted solid phase extraction and corona discharge ion mobility spectrometry were used to determine testosterone in urine. 17 However, there are no previous reports in which SPE was used to preconcentrate analytes in environmental samples and to analyze its extract by HS-IMS.…”

Section: Introductionmentioning

confidence: 99%

Solid phase extraction to enhance sensitivity when headspace-gas chromatography-ion mobility spectrometer is used: determination of phenol in environmental samples

2016

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Ion mobility spectrometry (IMS) provides quick and reliable responses when applied in the environmental field. However, when headspace (HS) is used as the sample introduction system, in some cases there may be a need to preconcentrate analyte if it is presented at low concentrations due to the low efficiency of HS. Herein, we discuss the parameters that affect the HS and the potential of combining solid phase extraction (SPE) and HS-IMS to improve the sensitivity of the method. The determination of phenol when it is presented in water or soil samples was selected as a case study and a limit of detection of 0.94 mg mL À1 and 0.14 mg mL À1 was obtained when direct analysis by HS-IMS was used. This methodology, which was developed based on SPE prior to HS-IMS analysis, was suitable for the detection of phenol at 0.05 mg mL À1 when 15 mL of water sample was passed through an HLB 60 mg SPE cartridge and eluted with 1 mL of dichloromethane. The HS-IMS analysis of the eluent in which phenol was present was carried out without any interference from the solvent.

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Analysis of testosterone in human urine using molecularly imprinted solid‐phase extraction and corona discharge ion mobility spectrometry

Cited by 19 publications

References 31 publications

Automated and sensitive determination of four anabolic androgenic steroids in urine by online turbulent flow solid-phase extraction coupled with liquid chromatography–tandem mass spectrometry: A novel approach for clinical monitoring and doping control

Automated and sensitive determination of four anabolic androgenic steroids in urine by online turbulent flow solid-phase extraction coupled with liquid chromatography–tandem mass spectrometry: A novel approach for clinical monitoring and doping control

Sol–gel/nanoclay composite as a sorbent for microextraction in packed syringe combined with corona discharge ionization ion mobility spectrometry for the determination of diazinon in water samples

Solid phase extraction to enhance sensitivity when headspace-gas chromatography-ion mobility spectrometer is used: determination of phenol in environmental samples

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