Bibliografías temáticas / DITHIZONE

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Literatura académica sobre el tema "DITHIZONE"

Autor: Grafiati
Publicado: 4 de junio de 2021
Última modificación: 26 de julio de 2025

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Artículos de revistas sobre el tema "DITHIZONE"

1

Sulistyarti, Hermin, Mega Madha Wijaya, Dewi Setyowati, Sutrisno Sutrisno, and Erwin Sulistyo. "Simple and Rapid Device for Mercury Detection Based on The Formation of Mercury(II)-Dithizonate on Polytetrafluoroethylene (PTFE) Membrane." Journal of Pure and Applied Chemistry Research 8, no. 2 (2019): 185–96. http://dx.doi.org/10.21776/ub.jpacr.2019.008.02.473.

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A new analytical device for mercury detection has been developed by doping dithizone on to hydrophobic PTFE (polytetrafluoroethylene) membrane to form a blue dithizone membrane which instantaneously changed to orange color of mercury(II)-dithizonate complex, when this dithizone membrane was contacted to mercury(II) solution. The higher concentration of mercury showed the greater intensity of the orange colour mercury(II)-dithizonate complex. The design and chemicals were optimized to obtain the best performance for mercury measurement. This method is prospective as mercury test kit for simple,
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Sueishi, Yoshimi, and Yoko Takashima. "Kinetic and Mechanistic Studies of the Thermal Isomerization of Bismuth Dithizonate." Journal of Chemical Research 2000, no. 4 (2000): 193–95. http://dx.doi.org/10.3184/030823400103166922.

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The isomerization rates of bismuth dithizonate (Bi(HD Z)3) having three dithizone ligands have been measured in various kinds of solvents and at high pressures, and the reaction mechanisms in aprotic and protic solvents are discussed.
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3

Dang, Tai Kim. "DETERMING LEAD IN SOIL BY EXTRACTION-PHOTOMETRIC IN CAO LANH CITY, DONG THAP PROVINCE." Scientific Journal of Tra Vinh University 1, no. 25 (2019): 56–59. http://dx.doi.org/10.35382/18594816.1.25.2017.121.

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This paper is to identify lead content in soil by extraction-photometric method and using non-polar solvents (CHCl3) to extract complex of lead (II) -dithizone. The optimal conditions of extraction process of lead(II) dithizonate have been identified: pH is from 8.5 to 10,0; the maximum wavelength of lead(II) dithizonate compound is 520nm (λmax = 520 nm); absorbance of the solution in compliance with the Bougher-Lambert-Beer law is in wide range from 0.02 to 0.1 mg/l.
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Svoboda, Ladislav, and Stanislav Jech. "Sorption of Cadmium and Lead by Chelating Ion Exchangers Ostsorb DITHIZON and Ostsorb SALICYL." Collection of Czechoslovak Chemical Communications 59, no. 6 (1994): 1319–25. http://dx.doi.org/10.1135/cccc19941319.

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The pH and I (ionic strength) dependences of exchange capacity of chelating ion exchangers Ostsorb based on spherical cellulose modified with functional groups of dithizone and salicylic acid have been studied in the sorption of Pb(II) and Cd(II) ions. The cellulosic selective sorbents Ostsorb DITHIZON and Ostsorb SALICYL can be used for sorption of Pb(II) and Cd(II) ions from aqueous solutions of I = 0 - 1 mol l-1 (Pb) and I = 0 - 5 mol l-1 (Cd); the dithizone ion exchanger retains both metals most effectively at pH 7 - 8, the salicyl ion exchanger at pH 5.5 - 6.5 (Pb) or pH 4 - 9 (Cd). Becau
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Richveisová, Barbora Micháleková, Zuzana Dürešová, Miroslav Horník, Jozef Augustín, and Martin Pipíška. "Distribution of Zinc and Cadmium in Tissues of Giant Reed (Arundo Donax L.): Sequential Extraction - Radiometric Study." Nova Biotechnologica et Chimica 13, no. 1 (2014): 38–47. http://dx.doi.org/10.2478/nbec-2014-0005.

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Abstract Heavy metals are taken up by the vascular plant root system from water solutions in cationic forms. Subsequently, during both short and long distance transport to other plant tissues, cation forms are incorporated to many bioorganic compounds differing in stability, ionic character and physico-chemical properties such as solubility in lipid structures and mobility across cell membrane systems. Many sequential and single step extraction methods have been elaborated for characterization of the role of individual components of plant cells components in transport and detoxication of heavy
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Fadela, Dian Mira, Mudasir Mudasir, and Adhitasari Suratman. "Adsorption of Cu2+ Metal Ions on Dithizone-Immobilized Natural Bentonite." Key Engineering Materials 840 (April 2020): 64–70. http://dx.doi.org/10.4028/www.scientific.net/kem.840.64.

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The research of adsorption of Cu2+ metal ion on dithizone-immobilized natural bentonite (DNB) had been carried out. The experiment was begun by the activation of natural bentonite with HCl 4 M and dithizone-immobilized on activated bentonite surface. This study included synthesis and characterization of dithizone-immobilized bentonite and its application in adsorption of Cu2+ metal ions. The type of interaction occurred in the adsorption was tested by sequential desorption. The result showed that dithizone successfully immobilized on activated natural bentonite (ANB). The optimum conditions fo
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Sidarta, Yuan, Didik Krisdiyanto, and Khamidinal Khamidinal. "Adsorption and Desorption Metal Cu (II) using Zeolite Synthetic by Bottom Ash Coal Modified Dithizone." Kaunia: Integration and Interconnection Islam and Science Journal 18, no. 2 (2022): 41–51. http://dx.doi.org/10.14421/kaunia.3706.

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Zeolite synthetic and zeolite modified dithizone has been succesfully created by hydrotermal method. The aim of this research is to know the characteristics of zeolite synthetic and zeolite modified dithizone and to know capacity of adsorption and desorption. The effect of various variables, such as pH, concentration of Cu (II), contact time and temperature was investigated using batch process, characterization zeolite modified dithizone and zeolite synthetic using XRD, XRF, FTIR and GSA. The result of characterization bottom ash coal by hydrotermal reaction using XRF, be discovered compositio
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Mudasir, Mudasir, Febbi Rahmayuni, and Sri Sudiono. "Removal of Pb(II) Ion from Aqueous Solution Using Dithizone-Immobilized Natural Bentonite." Key Engineering Materials 884 (May 2021): 10–16. http://dx.doi.org/10.4028/www.scientific.net/kem.884.10.

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Removal of Pb(II) ion using activated and dithizone-immobilized natural bentonites has been carried out. Natural bentonite was activated by immersing and stirring the bentonite in 6M HCl solution. The dithizone-immobilized natural bentonite was prepared by mixing the bentonite and dithizone in toluene at 50 °C for 6 h and the immobilized adsorbents was characterized by FTIR and XRD. The dithizone immobilization is aimed to increase the capacity and selectivity of the adsorbent towards Pb(II) ions. Characterization results suggest that dithizone has been successfully immobilized on the surface
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Rabaeh, Khalid, and Ahmed Basfar. "Optical evaluation of dithizone solution as a new radiochromic dosimeter." Pigment & Resin Technology 49, no. 4 (2020): 249–53. http://dx.doi.org/10.1108/prt-10-2019-0091.

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Purpose The purpose of this paper is to propose a new dithizone solution dosimeter for high radiation applications such as polymers applications and food irradiation. Design/methodology/approach Gamma-rays cell of Co-60 source with 8.4 kGy/h dose rate was used to irradiate the dithizone solutions at different irradiation temperatures. The optical measurements of unirradiated and irradiated dithizone dye solution dosimeters were performed using a UV/VIS spectrophotometer at absorption peaks of 421 and 515 nm. Findings The new dosimeter improved significantly with the increase of dithizone dye c
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(Miss), B. SARANGI, K. MISRA B., and B. BEHERA G. "Kinetic Studies of the Formation of Dithizone. Part-I. Alkali assisted Conversion of Phenylhydrazinium Phenylhydrazine Dithiocarbamate and Diphenylthiocarbazide." Journal of Indian Chemical Society Vol. 62, Dec 1985 (1985): 979–82. https://doi.org/10.5281/zenodo.6325060.

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Department of Chemistry, Sambalpur University, Burla-768 019 The kinetics of formation of dithizone (3) from phenylhydrazinium phenylhydra­zine dithiocarbamate (1) and from phenylthiocarbazide (2) has been studied. The synthetic aspect of the formation of dithizone from phenylhydrazine and carbon disul­phide has also been worked out. A mechanism for the formation of dithizone from 1 and 2 has been proposed.
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Tesis sobre el tema "DITHIZONE"

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Sacht, Cheryl. "Studies with dithizone : the extraction of thallium (III)." Master's thesis, University of Cape Town, 1985. http://hdl.handle.net/11427/22161.

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Bibliography: pages 141-144.<br>Thallium(III) reacts with dithizone(I) in a complicated way through a number of intermediate products which depend on the relative proportions of reactants, the pH of the aqueous phase, the order of mixing of reactants, the time of phase equilibrium and the nature of the organic solvent used. The reaction between thallium(III) and dithizone is essentially oxidative in character. In the present work the complete reaction scheme is proposed: Thallium(III) reacts with dithizone to give a thallic-dithizonate complex, [TlIII(HDz)₃], which spontaneously and oxidativel
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Mirkhalaf, Fakhradin. "Electrochemical, optical and metal ion sensing properties of dithizone derivatised electrodes." Thesis, University of Liverpool, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.367270.

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Hardy, Simon Andrew. "The determination of trace metals by capillary electrophoresis." Thesis, University of Plymouth, 2000. http://hdl.handle.net/10026.1/2136.

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The development of a capillary electrophoresis (CE) method for the determination of inorganic and organo mercury species as their dithizone sulphonate (DzS) complexes using coated capillary columns is described. The complexes were pre-formed before injection and detection was by direct measurement of the visible absorbance of the complexes. Dithizone sulphonate was used in place of cysteine to separate methyl mercury in the final stage of a simplified Westoo extraction procedure. The method was than applied to the analysis of methyl mercury in a crab and several fish meat samples. Good quantit
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4

Bullock, Samantha Jane. "Metallosupramolecular chemistry of polydentate ligands and the solid state studies of diphenylcarbazide and dithizone." Thesis, University of Huddersfield, 2014. http://eprints.hud.ac.uk/id/eprint/24695/.

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Described herein, is the synthesis and coordination chemistry of eight novel ligands L1-L8, and the solid state studies of diphenylcarbazide and dithizone. These ligands form metallosupramolecular assemblies upon coordination of transition metal ions resulting in a wide range of architectures. Described in chapter two is a series of ligands that contain both N-donor and N-oxide donor atoms, L1-L4. Reaction of L1 with Cu2+ results in the formation of a mononuclear complex [Cu(L1)(ClO4)2(sol)] (solvent = MeCN or H2O), whereas L2 forms the dinuclear double helicate [Ni2(L2)2]4+ with Ni2+. Reactio
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Wewers, Francois. "Transition metal complexes of bis(diphenylphosphino)methane, dithizone and dithiolenes: structural, spectroscopic, electrochemical and computational studies." Doctoral thesis, University of Cape Town, 2012. http://hdl.handle.net/11427/22028.

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A series of heterobi- and tri-metallic complexes were prepared by the metallation of the carbanion derived from [M(CO)₄(dppm)] (M = Cr, Mo or W), [ML(dppm)] (L= dithiolene; M = Pd or Pt), or the cationic precursor, [Ru(Cp)(PPh3)(dppm)]PF₆. The complexes were characterized by ¹H and ³¹P NMR, IR and UV/Vis spectroscopies and X-ray crystallography. The presence of electrochemical communication in these complexes was investigated by means of cyclic voltammetry. Correlation studies of electrochemical potentials and 31P NMR data or carbonyl stretching frequencies of the Group 6 mercurated complexes
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APRAHAMIAN, EDWARD JR. "ROLE OF THE INTERFACE IN THE KINETICS AND MECHANISM OF SOLVENT EXTRACTION SYSTEMS (DITHIZONE, OXINE, INTERFACIAL AREA, DISPERSION)." Diss., The University of Arizona, 1985. http://hdl.handle.net/10150/187968.

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A high speed stirring apparatus was constructed for following the kinetics of metal ion extraction by chelating agents. The semi-automated system is capable of measuring reactions with half lives of 20 seconds or more with data being collected every second. Experimental data obtained with the device are superior to those collected by batch shakers, fixed interface cells, falling drop, or other stirring devices. The use of a microporous Teflon membrane phase separator along with the thermodynamic relation, the Gibbs Equation, enabled the measurement of drop sizes in a two phase liquid-liquid di
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Stewart, Jennifer Anne. "Structural, spectroscopic and electrochemical studies with metal dithizonate and 1,2-dithiolene complexes." Thesis, Queen's University Belfast, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.238996.

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Hanuščinová, Lucia. "Schopnost chelátorů mědi interagovat s železem a zinkem." Master's thesis, 2018. http://www.nusl.cz/ntk/nusl-388779.

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Charles University Faculty of Pharmacy in Hradec Králové Department of Pharmacology and Toxicology Student: Lucia Hanuščinová Supervisor: Assoc. Prof. Přemysl Mladěnka, PharmDr., PhD. Title of diploma thesis: Ability of copper chelators to interact with iron and zinc Copper plays in the human organism a role of an element with indispensable significance, whose biological influence and effects depend on its quantity. With elevated concentrations in the human body, copper becomes toxic, resulting in pathological conditions. The most well-known diseases is the Wilson's disease, whose treatment co
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Sanchez, Loredo Maria Guadalupe. "Extraktive Eigenschaften acider S-Decyl-Derivate des Dithizons und ihre Anwendbarkeit in Flüssig-Membranen /." 1996. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=007291626&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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Libros sobre el tema "DITHIZONE"

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Ball, C. P. The development of a fibre-optic heavy metal ion sensor based on immobilised dithizone. UMIST, 1993.

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2

Occupational Medicine and Hygiene Laboratory. Lead and inorganic compounds of lead in air: Colorimetric field method using sym-diphenyl-thiocarbazone (dithizone). Health and Safety Executive, 1987.

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3

Kruczynski, Daniel. Modifizierter Zinknachweis mit Dithizon am Testis (und Pancreas als Referenzorgan): E. vergleichend histochem. Studie. [s.n.], 1986.

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Capítulos de libros sobre el tema "DITHIZONE"

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Wu, Zihan, Ming Sun, and Ling Zou. "Colorimetric Detection of Mercury in Aqueous Media Based on Reaction with Dithizone." In Computer and Computing Technologies in Agriculture IX. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-48354-2_11.

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King, R. B., and I. Bresińka. "Synthesis of Polystyrene-Supported Dithizone Analogues for Use as Chemical Sensors for Heavy Metals." In Chemical and Biological Sensors for Environmental Monitoring. American Chemical Society, 2000. http://dx.doi.org/10.1021/bk-2000-0762.ch003.

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Xiao, Xiaocun, Jiwei Zhu, and Lei Wang. "Study on Adsorption Behavior of Cd(II) on Dithizone-Modified Sodium Trititanate Whisker and Its Application to Analysis." In 2011 International Conference in Electrics, Communication and Automatic Control Proceedings. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-8849-2_156.

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"dithizone method." In Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_42814.

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"dithizone, n." In Oxford English Dictionary, 3rd ed. Oxford University Press, 2023. http://dx.doi.org/10.1093/oed/2109160891.

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Actas de conferencias sobre el tema "DITHIZONE"

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Valenzuela, Adrian, Adalberto Toledo, Robert Leggat, Lake Barrett, and James Kretzler. "Analytical Method to Detect and Remediate Zinc Contamination of Austenitic Stainless Steels to Avoid Liquid Metal Embrittlement." In CONFERENCE 2023. AMPP, 2023. https://doi.org/10.5006/c2023-18999.

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Abstract Construction of a Plant was nearing completion when it was discovered that galvanized carbon steel scaffolding had been used during the installation of the refractory in the cracking furnaces. Zinc transferred by contact from the scaffold onto the furnace tubes was identified during the construction phase. This was concerning because contamination of the superalloy furnace radiant catalyst tubes with residual zinc could potentially lead to liquid metal embrittlement (LME) when the tubes are heated to the furnace operating temperature. An analytical method (Dithizone reagent [CAS 60-10
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2

Wardani, Gatut Ari, Fajar Setiawan, and Novi Agustin. "The Use of Dithizone for Lead Analysis in Blush." In 2nd Bakti Tunas Husada-Health Science International Conference (BTH-HSIC 2019). Atlantis Press, 2020. http://dx.doi.org/10.2991/ahsr.k.200523.059.

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Yulirohyami, Ifa Puspasari, Noor Anis Kundari, and Anisa Asmah Nadia. "Green synthesis of chitosan-silica/chitosan-silica immobilized dithizone as bioadsorben heavy metals." In PROCEEDINGS OF THE 4TH INTERNATIONAL CONFERENCE ON CHEMICAL PROCESSING AND ENGINEERING (4th IC3PE). AIP Publishing, 2024. http://dx.doi.org/10.1063/5.0216492.

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Cheng, Yong-Hua, Yi Miao, Ling-Hong Zhu, Zhong-Fang Pei, Fang Xia, and Song-Yue Song. "Study on Adsorption Behavior of Cd(II) on Dithizone Modified Sodium Trititanate Whisker and Its Application to Wastewater Treatment." In 2009 International Conference on Energy and Environment Technology. IEEE, 2009. http://dx.doi.org/10.1109/iceet.2009.422.

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Juwairiah, Juwairiah, and Meisi Riana. "Dithizone membrane manufacture applicable on membrane paper for early detection of heavy metal lead (Pb) impregated with Buchner vacuum." In PROCEEDINGS OF THE TEGAL INTERNATIONAL CONFERENCE ON APPLIED SCIENCES 2022: Applied Science Research Post-Covid-19 Pandemic. AIP Publishing, 2024. http://dx.doi.org/10.1063/5.0199199.

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Halili, Jeton, Altin Mele, Tahir Arbneshi, et al. "THE EVALUATION OF THE DITHIZONE PERFORMANCE AS A COMPLEXING REAGENT FOR SUPERCRITICAL CO2 EXTRACTION OF HEAVY METALS FROM AQUEOUS SOLUTIONS." In RAD Conference. RAD Association, 2016. http://dx.doi.org/10.21175/radproc.2016.27.

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Qi, Shengwen, Xueping Cheng, and Hongguang Lu. "Study on photochromic properties of metal dithizonate complexes doped PMMA film." In 2016 3rd International Conference on Mechatronics and Information Technology. Atlantis Press, 2016. http://dx.doi.org/10.2991/icmit-16.2016.134.

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Informes sobre el tema "DITHIZONE"

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Jenkins, C. W., R. B. King, and I. Bresinska. Synthesis of Polystyrene-Supported Dithizone Analogues for Use as Chemical Sensors for Heavy Metals. Office of Scientific and Technical Information (OSTI), 1998. http://dx.doi.org/10.2172/656434.

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