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Journal articles on the topic '1-(2-Thiazolylazo)-2-naphthol'

Author: Grafiati

Published: 4 June 2021

Last updated: 7 February 2022

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1

Gaokar, U. G., and M. C. Eshwar. "Rapid spectrophotometric determination of cerium(III) with 4-(2-thiazolylazo)resorcinol and 1-(2-thiazolylazo)-2-naphthol." Analyst 111, no. 12 (1986): 1393. http://dx.doi.org/10.1039/an9861101393.

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2

ALOthman, Z. A., M. A. Habila, S. M. Alfadul, E. Yilmaz, and M. Soylak. "A green, novel and simple microprecipitation technique for separation and preconcentration of cadmium with 1-(2-thiazolylazo)-2-naphthol in food samples and determination by microsampling flame atomic absorption spectrometry." Analytical Methods 8, no. 17 (2016): 3545–49. http://dx.doi.org/10.1039/c5ay03323c.

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3

Sharma, C. D., and M. C. Eshwar. "Rapid spectrophotometric determination of thorium(IV) with 1-(2′-thiazolylazo)-2-naphthol." Journal of Radioanalytical and Nuclear Chemistry Articles 91, no. 2 (September 1985): 323–28. http://dx.doi.org/10.1007/bf02061035.

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4

Eshwar, M. C., and C. D. Sharma. "Rapid spectrophotometric determination of vanadium(V) with 1-(2′-thiazolylazo)-2-naphthol." Microchemical Journal 35, no. 1 (February 1987): 27–29. http://dx.doi.org/10.1016/0026-265x(87)90196-2.

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5

Kalyanaraman, Srinivasan, Atsuko Sugiyama, and Tsutomu Fukasawa. "Extraction-spectrophotometric determination of zirconium or hafnium with 1-(2-thiazolylazo)-2-naphthol." Analyst 110, no. 2 (1985): 213. http://dx.doi.org/10.1039/an9851000213.

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6

Ferreira, Sérgio L. C., and Rita M. W. Nano. "Use of 1-(2-thiazolylazo) 2-naphthol in rapid determination of iron in geological matrices." Talanta 41, no. 11 (November 1994): 1937–41. http://dx.doi.org/10.1016/0039-9140(94)00152-9.

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7

Pooley, Grace M., Mohammad A. Adel-Hadadi, Weixing Li, Travis C. Dietz, and Aaron Barkatt. "Silane coupling and mordanting as attachment techniques for pyridylazo and thiazolylazo ligands in the synthesis of adsorbents for uranium in seawater." Adsorption Science & Technology 36, no. 3-4 (January 30, 2018): 1144–59. http://dx.doi.org/10.1177/0263617418755170.

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Activated carbon adsorbents modified with azo compounds (4-(2-pyridylazo)resorcinol, 1-(2-pyridylazo)-2-naphthol, 4-(2-thiazolylazo)resorcinol), or with allyl and vinylbenzyl derivatives of 4-(2-thiazolylazo)resorcinol, were observed to be highly effective in removing uranium from seawater and providing high loadings. Adsorbents consisting of azo compounds attached to fiber fabrics were prepared using silane coupling to attach azo reagents to silica fibers or mordanting agents such as tannic acid or aluminum acetate to attach them to cellulose fibers. Loadings of 15–45 mg U g−1 adsorbent were obtained. Scanning electron microscopy/energy dispersive X-ray spectroscopy measurements confirmed the presence of high concentrations of uranium on the surface of the silica-based and cellulose-based fibers.

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8

Makrlik, Emanuel, and Petr Vaňura. "Contribution to the termodynamics of 1-(2-thiazolylazo)-2-naphthol in the water-nitrobenzene extraction system." Journal of the Serbian Chemical Society 65, no. 8 (2000): 581–85. http://dx.doi.org/10.2298/jsc0008581m.

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General relations among thermodynamic parameters characterizing chemical equilibria including species ?2?+, HA, H+ and A- in both phases of a two-phase water-nitrobenzene extraction system have been derived. From the extraction measurements, the equilibrium distribution constant of electroneutral 1-(2-thiazolylazo)-2-naphthol (TAN, HA) between the nitrobenzene and aqueous phases has been determined: log ATD(HA) = 3.90?0.02. By using this value and further known constants and applying the mentioned relations, the following values of dissociation constants of TAN in nitrobenzene saturated with water have been calculated for a temperature of 25?C: pKdnb(H2A+) = -log Kdnb(H2A+) = 4.9 and pKdnb(HA) = -log Kdnb(HA) = 16.5.

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9

Zamani, Hassan Ali, Mehdi Nekoei, Majid Mohammadhosseini, and Mohammad Reza Ganjali,. "Construction of Tm3+-PVC membrane sensor based on 1-(2-thiazolylazo)-2-naphthol as sensing material." Materials Science and Engineering: C 30, no. 3 (April 2010): 480–83. http://dx.doi.org/10.1016/j.msec.2010.01.007.

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10

Rathaiah, Gogineni V., and Muppalla C. Eshwar. "Rapid Spectrophotometric Determination of Chromium(III) with 1-(2-Thiazolylazo)-2-naphthol in Presence of Surfactant." Bulletin of the Chemical Society of Japan 58, no. 8 (August 1985): 2447–48. http://dx.doi.org/10.1246/bcsj.58.2447.

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11

Niazi, Ali, Ateesa Yazdanipour, and Majid Ramezani. "Multiwavelength spectrophotometric determination of acidity constants of 1-(2-thiazolylazo)-2-naphthol in methanol–water mixtures." Chinese Chemical Letters 18, no. 8 (August 2007): 989–92. http://dx.doi.org/10.1016/j.cclet.2007.06.010.

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12

Karmakar, Animesh, and Bula Singh. "Charge-transfer complex of 1-(2-Thiazolylazo)-2-naphthol with aromatic nitro compounds: Experimental and theoretical studies." Journal of Molecular Liquids 247 (December 2017): 425–33. http://dx.doi.org/10.1016/j.molliq.2017.09.124.

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13

Niazi, Ali, and Ateesa Yazdanipour. "Simultaneous spectrophotometric determination of cobalt, copper and nickel using 1-(2-thiazolylazo)-2-naphthol by chemometrics methods." Chinese Chemical Letters 19, no. 7 (July 2008): 860–64. http://dx.doi.org/10.1016/j.cclet.2008.04.047.

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14

Rathaiah, G. V., J. Krishnama Charyulu, and M. C. Eshwar. "Spectrophotometric determination of uranium(VI) with 1-(2′-thiazolylazo)-2-naphthol in the presence of Trition X-100." Journal of Radioanalytical and Nuclear Chemistry Articles 99, no. 2 (June 1986): 337–44. http://dx.doi.org/10.1007/bf02037594.

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15

Kuswandi, Bambang, and Ramaier Narayanaswamy. "Characterisation of a Hg(II) ion optrode based on Nafion®-1-(2-thiazolylazo)-2-naphthol composite thin films." Journal of Environmental Monitoring 1, no. 1 (1999): 109–14. http://dx.doi.org/10.1039/a807607c.

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16

Hosseini-Bandegharaei, Ahmad, Mohammad Saeid Hosseini, Yousef Jalalabadi, Masoud Sarwghadi, Mehdi Nedaie, Akram Taherian, Ahmad Ghaznavi, and Ahmad Eftekhari. "Removal of Hg(II) from aqueous solutions using a novel impregnated resin containing 1-(2-thiazolylazo)-2-naphthol (TAN)." Chemical Engineering Journal 168, no. 3 (April 2011): 1163–73. http://dx.doi.org/10.1016/j.cej.2011.02.004.

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17

Chao, Mu-Rong, Chiung-Wen Hu, and Jian-Lian Chen. "Fluorometric determination of copper(II) using CdTe quantum dots coated with 1-(2-thiazolylazo)-2-naphthol and an ionic liquid." Microchimica Acta 183, no. 4 (February 3, 2016): 1323–32. http://dx.doi.org/10.1007/s00604-015-1693-3.

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18

Lee, Won, Si-Eun Lee, Chang-Heon Lee, Young-Sang Kim, and Yong-Ill Lee. "A chelating resin containing 1-(2-thiazolylazo)-2-naphthol as the functional group; synthesis and sorption behavior for trace metal ions." Microchemical Journal 70, no. 3 (December 2001): 195–203. http://dx.doi.org/10.1016/s0026-265x(01)00132-1.

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19

Saeed, Muhammad Mufazzal, Sadia Zafar Bajwa, and Muhammad Shahid Ansari. "Investigation of the Removal of Lead by Adsorption onto 1-(2-Thiazolylazo)-2-Naphthol (TAN) Imbedded Polyurethane Foam from Aqueous Solution." Journal of the Chinese Chemical Society 54, no. 1 (February 2007): 173–83. http://dx.doi.org/10.1002/jccs.200700027.

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20

BHALOTRA, Anju, and Bal K. PURI. "Column Preconcentration and Second Derivative Spectrophotometric Trace Determination of Scandium in Standard Biological and Synthetic Samples Using 1-(2-Thiazolylazo)-2-naphthol." Analytical Sciences 16, no. 5 (2000): 507–11. http://dx.doi.org/10.2116/analsci.16.507.

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21

Rao, R. R., and A. Chatt. "Preconcentration neutron activation analysis of trace elements in seawater by coprecipitation with 1-(2-thiazolylazo)-2-naphthol, pyrrolidinedithiocarbamate and N-nitroso-phenylhydroxylamine." Journal of Radioanalytical and Nuclear Chemistry Articles 168, no. 2 (February 1993): 439–48. http://dx.doi.org/10.1007/bf02040524.

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22

Starvin, A. M., and T. Prasada Rao. "Removal and recovery of mercury(II) from hazardous wastes using 1-(2-thiazolylazo)-2-naphthol functionalized activated carbon as solid phase extractant." Journal of Hazardous Materials 113, no. 1-3 (September 2004): 75–79. http://dx.doi.org/10.1016/j.jhazmat.2004.04.021.

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23

Samadi, Azam, and Mohammad Amjadi. "Magnetic Fe3O4@C nanoparticles modified with 1-(2-thiazolylazo)-2-naphthol as a novel solid-phase extraction sorbent for preconcentration of copper (II)." Microchimica Acta 182, no. 1-2 (July 19, 2014): 257–64. http://dx.doi.org/10.1007/s00604-014-1327-1.

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24

Low, Kah Hin, Sharifuddin Md Zain, Mhd Radzi Abas, Misni Misran, and Mustafa Ali Mohd. "Simultaneous Spectrophotometric Determination of Copper, Nickel, and Zinc Using 1-(2-Thiazolylazo)-2-Naphthol in the Presence of Triton X-100 Using Chemometric Methods." Journal of the Korean Chemical Society 53, no. 6 (December 20, 2009): 717–26. http://dx.doi.org/10.5012/jkcs.2009.53.6.717.

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25

Bagherian, Ghadamali, Mansour Arab Chamjangali, and Hamideh Mohammadian. "H-point Standard Addition Method (HPSAM) for Simultaneous Spectrophotometric Determination of Cu(II) and Pd(II) by 1-(2-thiazolylazo)-2-naphthol (TAN) in Micellar Media." Analytical Chemistry Letters 6, no. 2 (March 3, 2016): 181–92. http://dx.doi.org/10.1080/22297928.2015.1068707.

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26

Tokalıoğlu, Şerife, Vedat Yılmaz, and Şenol Kartal. "Solid phase extraction of Cu(II), Ni(II), Pb(II), Cd(II) and Mn(II) ions with 1-(2-thiazolylazo)-2-naphthol loaded Amberlite XAD-1180." Environmental Monitoring and Assessment 152, no. 1-4 (May 17, 2008): 369–77. http://dx.doi.org/10.1007/s10661-008-0322-6.

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27

Goodwin, W. E., Raghu R. Rao, and A. Chatt. "Reversed-phase extraction chromatography–neutron activation analysis (RPEC–NAA) for copper in natural waters using Amberlite XAD-4 resin coated with 1-(2-thiazolylazo)-2-naphthol." Journal of Radioanalytical and Nuclear Chemistry 296, no. 1 (August 17, 2012): 489–94. http://dx.doi.org/10.1007/s10967-012-2056-8.

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28

Li, Zonghao, Gong Yu, Jun Song, Qi Wang, Mousheng Liu, and Yaling Yang. "Study on the determination of heavy metals in water samples with ultrasound-assisted dispersive liquid–liquid microextraction prior to FAAS." Water Science and Technology 67, no. 2 (January 1, 2013): 247–53. http://dx.doi.org/10.2166/wst.2012.524.

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A new, simple and rapid method based on dispersive liquid–liquid microextraction (DLLME) was developed for extracting and preconcentrating copper (Cu), nickel (Ni), lead (Pb) and cadmium (Cd) in water samples prior to flame atomic absorption spectrometry (FAAS) analysis. 1-(2-thiazolylazo)-naphthol (TAN) was used as chelating reagents, and non-ionic surfactant Triton X-114 and CCl4 as disperser solvent and extraction solvent, respectively. Some influential factors relevant to DLLME, such as the concentration of TAN, type and volume of disperser and extraction solvent, pH and ultrasound time, were optimized. Under the optimal conditions, the calibration curve was linear in the range of 10–800 μg L−1 for Cu and Ni, 10–500 μg L−1 for Pb, and 10–1,000 μg L−1 for Cd, respectively. The limits of detection for the four metal ions were below 0.5 μg L−1, with the enhancement factors of 105, 66, 28 and 106 for Cu, Ni, Pb and Cd, respectively. The relative standard deviations (RSD, n = 6) were 2.6–4.1%. The proposed method was applied to determination of Cu, Ni, Pb and Cd in water samples and satisfactory relative recoveries (93.0–101.2%) were achieved.

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29

Bhalotra, Anju, and Bal Krishan Prui. "Preconcentration of Bismuth(III) and Copper(II) by Solid-Phase Extraction and Subsequent Determination by Differential Pulse Polarography." Journal of AOAC INTERNATIONAL 84, no. 1 (January 1, 2001): 47–52. http://dx.doi.org/10.1093/jaoac/84.1.47.

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Abstract A differential pulse polarographic method is proposed for the trace determination of bismuth and copper from large volumes of aqueous samples after adsorption of their 1-(2-thiazolylazo)-2-naphthol complexes onto microcrystalline naphthalene in the pH ranges of 7.2–9.0 and 4.0–7.8, respectively. Bismuth and copper are desorbed from microcrystalline naphthalene with 9 mL 1M HCl. Well-defined peaks are obtained at Ep = −0.09 and −0.20 V versus a saturated calomel electrode, in an HCl–isoquinoline medium as the supporting electrolyte, for bismuth and copper, respectively. Bismuth is reduced reversibly with a 3-electron change, whereas copper is reduced irreversibly under these conditions. The detection limits are 55 ng/mL for bismuth and 91 ng/mL for copper. Linearity is maintained in the concentration ranges of 0.18–13.5 and 0.30-17.3 μg/mL for bismuth and copper, respectively, with corresponding correlation coefficients of 0.9996 and 0.9885. The relative standard deviations are 1.0% for bismuth at 2.0 μg/mL and 1.4% for copper at 5.0 μg/mL. Various parameters were optimized to develop conditions for the determination of these metal ions in various samples.

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30

Yu, Min, Xiaoyan Hu, Jingyu Yan, Ying Wang, Fei Lu, and Junlei Chang. "RIOK2 Inhibitor NSC139021 Exerts Anti-Tumor Effects on Glioblastoma via Inducing Skp2-Mediated Cell Cycle Arrest and Apoptosis." Biomedicines 9, no. 9 (September 17, 2021): 1244. http://dx.doi.org/10.3390/biomedicines9091244.

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Up to now, the chemotherapy approaches for glioblastoma were limited. 1-[2-Thiazolylazo]-2-naphthol (named as NSC139021) was shown to significantly inhibit the proliferation of prostate cancer cells by targeting the atypical protein kinase RIOK2. It is documented that RIOK2 overexpressed in glioblastoma. However, whether NSC139021 can inhibit the growth of glioblastoma cells and be a potential drug for glioblastoma treatment need to be clarified. In this study, we investigated the effects of NSC139021 on human U118MG, LN-18, and mouse GL261 glioblastoma cells and the mouse models of glioblastoma. We verified that NSC139021 effectively inhibited glioblastoma cells proliferation, but it is independent of RIOK2. Our data showed that NSC139021 induced cell cycle arrest at G0/G1 phase via the Skp2-p27/p21-Cyclin E/CDK2-pRb signaling pathway in G1/S checkpoint regulation. In addition, NSC139021 also increased the apoptosis of glioblastoma cells by activating the p53 signaling pathway and increasing the levels of Bax and cleaved caspase 3. Furthermore, intraperitoneal administration of 150 mg/kg NSC139021 significantly suppressed the growth of human and mouse glioblastoma in vivo. Our study suggests that NSC139021 may be a potential chemotherapy drug for the treatment of glioblastoma by targeting the Skp2-p27/p21-Cyclin E/CDK2-pRb signaling pathway.

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31

Bhalotra, A. "Trace determination of zinc in standard alloys, environmental and pharmaceutical samples by fourth derivative spectrophotometry using 1-2-(thiazolylazo)-2-naphthol as reagent and ammonium tetraphenylborate supported on naphthalene as adsorbent." Talanta 49, no. 3 (July 1999): 485–93. http://dx.doi.org/10.1016/s0039-9140(99)00013-2.

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32

Saeed, Muhammad M., Sadia Z. Bajwa, Muhammad S. Ansari, and Riaz Ahmed. "Solid phase sorption of microamount of Hg(II) onto 1-(2-thiazolylazo)-2-naphthol (TAN) loaded polyurethane foam." Radiochimica Acta 93, no. 3 (January 1, 2005). http://dx.doi.org/10.1524/ract.93.3.177.61610.

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SummaryMercury is a toxic environmental pollutant. A method has been developed to remove these metal ions by preconcentrating onto 1-(2-thiazolylazo)-2-naphthol (TAN) loaded polyurethane (PUR) foam that proves an excellent sorbent for these metal ions. The accumulation conditions are optimized with respect to pH, shaking time, loading capacity and adsorbent weight. The optimum pH for sorption was found to be 7, which is close to the natural water. Optimum shaking time for Hg(II) is 30 min. The kinetic studies indicate that sorption occurs through intraparticle diffusion process. Classical adsorption isotherms are applied to determine the nature of sorption. The sorption free energy value indicates that adsorption process is chemisorption. Effect of temperature has been used to compute the values of Δ

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33

Anaia, Grazielle C., Patricia A. M. Freitas, Maria E. V. Suárez-Iha, and Fábio R. P. Rocha. "Adsorption of 1-(2-Thiazolylazo)-2-Naphthol on Amberlite XAD-7 and Silica Gel: Isotherms and Kinetic Studies." Journal of the Brazilian Chemical Society, 2014. http://dx.doi.org/10.5935/0103-5053.20140012.

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34

Khan, Aslam, Shujaat Ahmed, Farzana Mahmood, M. Younas Khokhar, and M. Riaz. "Efficacy of a new tan doped sol-gel sorbent for uptake of zinc." Radiochimica Acta 91, no. 7 (January 1, 2003). http://dx.doi.org/10.1524/ract.91.7.413.20018.

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SummaryA TAN (1-(2-Thiazolylazo)-2-naphthol)) doped sol gel silica sorbent (reddish colour, porous, stable, hard, non- swelling) were prepared and investigated for the removal of Zn (II) from aqueous solutions. The kinetics, adsorption isotherm, equilibration time and pH effect on the removal were studied from non competitive aqueous solution to optimize the conditions to be utilized on a large scale. Fast equilibration was observed and adsorption equilibria were reached within 30minutes. Adsorption of zinc ions on the blank (un-doped) sol gel was found negligible. The maximum adsorption of Zn (II) ions onto the TAN doped sol-gel from single solutions were 2.33mg/g (0.035mmol/g). TAN doped sol gel can be regenerated through washing with a solution of 0.1M HCl solution. The maximum regeneration value was as high as 99.0. The TAN-doped sol gel silica is suitable at least for four adsorption-desorption cycles without experiencing considerable loss of adsorption capacity. The uptake route and the nature of the Zn-TAN complex have been discussed.

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