Determination of iodide by detection of iodine using gas-diffusion flow injection and chemiluminescence

Ratanawimarnwong, Nuanlaor; Amornthammarong, Natchanon; Choengchan, Nathawut; Chaisuwan, Patcharin; Amatatongchai, Maliwan; Wilairat, Prapin; McKelvie, Ian D.; Nacapricha, Duangjai

doi:10.1016/j.talanta.2004.08.002

Cited by 36 publications

(17 citation statements)

References 16 publications

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“…Düşük derişimlerde iyodür tayini için donanımı pahalı, kullanımı için tecrübeli personele ihtiyaç duyulan, numunelerin bazı ön işlemlerle analize hazırlanmasını gerektiren ve analiz süresi uzun olan amperometrik [2], spektrometrik [3][4][5][6][7], kromatografik [8][9][10], voltametrik [11], kemilüminesans [12] ve akış enjeksiyon analizi [13][14][15][16] gibi çeşitli enstrümantal analiz yöntemleri bulunmaktadır.…”

Section: Introductionunclassified

Paladyum Komplekslerine Dayalı İyodür-Seçici Karbon Pasta Elektrot Hazırlanması

Özel¹,

Muratoğlu²,

Ertürün³

2017

SDÜ Fen Bil Enst Der

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Anahtar KelimelerKarbon pasta elektrot, İyodür-seçici elektrot, Potansiyometri, Paladyum kompleksleri Özet: Dibromo[1,1′-bis(difenilfosfin)ferrosen] paladyum(II) (iyonofor I) ve dikloro[1,1′-bis(difenilfosfin)ferrosen] paladyum(II) (iyonofor II) olarak adlandırılan paladyum komplekslerinin kullanıldığı yeni iyodür-seçici karbon pasta elektrotlar hazırlandı. İyonofor I ve II kullanılarak optimum karbon pasta bileşimiyle hazırlanan elektrotların pH 4,0'da sırasıyla −43,2 ± 0,6 mV/pI ve −43,8 ± 0,6 mV/pI eğimle, 3,5×10 −6 M ve 3,7×10 −7 M gözlenebilme sınırıyla, 1,0×10 −5 − 1,0×10 −1 M ve 1,0×10 −6 − 1,0×10 −1 M derişim aralığında doğrusal cevap verdikleri gözlendi. Önerilen elektrotların kısa cevap sürelerine, 3 aylık ömre, iyi bir tekrarlanabilirlik ve üretilebilirliğe sahip oldukları bulundu. Ayrıca, elektrotlar, iyodür içeren ilaç numunelerinde iyodürün potansiyometrik tayini için indikatör elektrot olarak başarılı bir şekilde kullanıldı. Preparation of Iodide-Selective Carbon Paste Electrode Based on Palladium ComplexesKeywords Carbon paste electrode, Iodide-selective electrode, Potentiometry, Palladium complexes Abstract: New carbon paste iodide-selective electrodes based on palladium complexes named as dibromo[1,1′-bis(diphenylphosphino)ferrocene] palladium(II) (ionophore I) and dichloro[1,1′-bis(diphenylphosphino)ferrocene] palladium(II) (ionophore II) were developed. The electrodes, prepared with optimum carbon paste composition by using ionophore I and II exhibited linear response with slopes of −43.2 ± 0.6 and −43.8 ± 0.6 mV/pI, detection limits of 3.5×10 −6 M and 2.9×10 −6 M at pH 4.0 over the concentration range of 1.0×10 −5 − 1.0×10 −1 M and 1.0×10 −6 − 1.0 × 10 −1 M, respectively. The proposed electrodes were found to have short response times, lifetime of three months, good reproducibility and repeatability. Moreover, the electrodes were successfully used as an indicator electrode for the potentiometric determination of iodide in an iodide containing drug sample.

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Section: Introductionunclassified

Paladyum Komplekslerine Dayalı İyodür-Seçici Karbon Pasta Elektrot Hazırlanması

Özel¹,

Muratoğlu²,

Ertürün³

2017

SDÜ Fen Bil Enst Der

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“…These include electrochemical detection [1], spectrophotometry [3], chemiluminescence [4], polarography, gas chromatography (GC) [5], liquid chromatography (LC) [6] and ion chromatography (IC) [7]. Although the sensitivity of some methods is high, these methods fail to provide decisive determinations of analytes in biological samples that give various types of matrix interferences.…”

Section: Introductionmentioning

confidence: 99%

Determination of iodide in urine using electrospray ionization tandem mass spectrometry

Minakata¹,

Yamagishi²,

Kanno³

et al. 2010

Journal of Chromatography B

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“…A limit of detection of 0.05 ng/cm 3 was obtained for iodine. Ratanawimarnwong et al (13) reported a FI-CL method for iodide in pharmaceutical products based on the luminol-iodine CL reaction, using gasdiffusion unit at 425 nm. The limit of detection for iodine was found to be <2.0 mg/L, with some serious interference from ascorbic acid and multivitamin tablets causing a negative CL signal.…”

Section: Introductionmentioning

confidence: 99%

“…The limit of detection for iodine was found to be <2.0 mg/L, with some serious interference from ascorbic acid and multivitamin tablets causing a negative CL signal. Nacapricha et al (14) reported a pervaporation-FI method for iodide with luminol CL detection in multivitamin tablets containing ascorbic acid, which interfered in the method reported previously (13). Off-line sample treatment with an anion exchange column was used to remove ascorbic acid from iodide before analysis.…”

Section: Introductionmentioning

confidence: 99%

Flow‐injection method for the determination of iodide/iodine using Ru(bpy)₃³⁺–NADH chemiluminescence detection

2008

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A two-channel flow-injection (FI) method is reported for the determination of iodide and iodine by its enhancement effect on the Ru(bpy)(3)(3+)-NADH chemiluminescence (CL) system. The limit of detection (3 s of blank) was 1.0 x 10(-9) mol/L iodide/iodine, with a sample throughput of 60/h. The calibration graphs over the range 1.0-50 x 10(-8) mol/L gave correlation coefficients of 0.9994 and 0.999 (n = 5) with relative standard deviations (RSD; n = 4) of 1.0-2.5%, respectively. The effects of interfering cations, anions and some organic compounds were also studied. The method was applied to iodized salts and pharmaceutical samples and the results obtained were in good agreement with the value quoted. The CL method developed was compared with spectrophotometric method.

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Determination of iodide by detection of iodine using gas-diffusion flow injection and chemiluminescence

Cited by 36 publications

References 16 publications

Paladyum Komplekslerine Dayalı İyodür-Seçici Karbon Pasta Elektrot Hazırlanması

Paladyum Komplekslerine Dayalı İyodür-Seçici Karbon Pasta Elektrot Hazırlanması

Determination of iodide in urine using electrospray ionization tandem mass spectrometry

Flow‐injection method for the determination of iodide/iodine using Ru(bpy)₃³⁺–NADH chemiluminescence detection

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Determination of iodide by detection of iodine using gas-diffusion flow injection and chemiluminescence

Cited by 36 publications

References 16 publications

Paladyum Komplekslerine Dayalı İyodür-Seçici Karbon Pasta Elektrot Hazırlanması

Paladyum Komplekslerine Dayalı İyodür-Seçici Karbon Pasta Elektrot Hazırlanması

Determination of iodide in urine using electrospray ionization tandem mass spectrometry

Flow‐injection method for the determination of iodide/iodine using Ru(bpy)33+–NADH chemiluminescence detection

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Product

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Flow‐injection method for the determination of iodide/iodine using Ru(bpy)₃³⁺–NADH chemiluminescence detection