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  • 4-(5-nitro-2-pyridylazo) resorcinol  (1)
  • Cyprideis torosa, δ18O; DEPTH, sediment/rock; Eucypris mareotica, δ18O; Limnocythere inopinata, δ18O; Tarim_Basin_Section; Tarim Basin, China  (1)
  • Layered phosphate  (1)
  • Life and Medical Sciences  (1)
  • 1
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    Ostracoda stable oxygen isotope record of a sediment section in the Tarim Basin (2017)
    PANGAEA
    Details
    Publication Date: 2023-02-12
    Keywords: Cyprideis torosa, δ18O; DEPTH, sediment/rock; Eucypris mareotica, δ18O; Limnocythere inopinata, δ18O; Tarim_Basin_Section; Tarim Basin, China
    Type: Dataset
    Format: text/tab-separated-values, 22 data points
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    DATA PANGAEA
  • 2
    Electronic Resource
    Electronic Resource
    Determination of Nb(V), V(V), Co(II), Fe(III), Ni(II), Ru(III) and Pd(II) as their 4-(5-nitro-2-pyridylazo) resorcinol chelates by reversed-phase high performance liquid chromatography (1994)
    Springer
    Microchimica acta 117 (1994), S. 65-74 
    Details
    ISSN: 1436-5073
    Keywords: reversed-phase HPLC ; transition metals ; noble metals ; 4-(5-nitro-2-pyridylazo) resorcinol
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract This paper reports the separation and determination of Nb(V), V(V), Co(II), Fe(III), Ni(II), Ru(III) and Pd(II) by reversed-phase HPLC using the new reagent, 4-(5-nitro-2-pyridylazo) resorcinol (5-NO2-PAR) as a precolumn derivatization reagent. On a C18 column, the seven metal chelates can be separated quantitatively with methanol/water (52∶48, v/v) containing 15 mmol/l pH 5.0 acetate buffer and 10 mmol/l tetrabutylammonium bromide (TBA·Br). The detection limits for Nb(V), V(V), Co(II), Fe(III), Ni(II), Ru(III) and Pd(II) are 0.65 ppb, 0.94 ppb, 0.10 ppb, 0.15 ppb, 0.18 ppb, 3.02 ppb and 2.35 ppb, respectively when the ratio of signal to noise (S/N) is 3. This method is simple and rapid, and has been used in the analysis of rain and liquor with satisfactory results.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01243017
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Studies on the Colloidization and Stability of Layered M(IV) Phosphates in Aqueous Amine Solutions (1997)
    Springer
    Journal of inclusion phenomena and macrocyclic chemistry 27 (1997), S. 303-317 
    Details
    ISSN: 1573-1111
    Keywords: Layered phosphate ; intercalation ; colloidization ; hydrolysis ; sheet stability
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract For the purpose of preparing pillared materials and multifunctional films,the colloidization and hydrolysis of α-Zr(HPO4)2·H2O(α-ZrP), α-Sn(HPO4)2·H2O (α-SnP)and α-Ti(HPO4)2·H2O (α-TiP) in alkylamineand alcohol amine solutions were investigated. The phosphates colloidizeat a low level of amine intercalation but recrystallize at high levels ofamine uptake. Alcohol amines are more efficient in colloidization ofphosphates than alkylamines, and in the same amine solution α-ZrPand α-SnP colloidize more readily than α-TiP. Thehydrolytic reaction of the phosphates following the course of intercalationin different amine solutions were studied. The dissolution of the metal ionsaccompanying the hydrolysis of HPO42- leads to the destruction ofthe sheet structure. The strong hydrolytic reaction of α-TiP causesit to colloidize with difficulty. The phase transformations of the wet amineintercalates during air drying were detected by XRD. The interlayer aminemolecules may arrange in monolayer, bilayer or intermediate orientation,depending on the nature and content of the amines.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1007962502627
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  • 4
    Electronic Resource
    Electronic Resource
    Tributyltin is a potent inducer of the heat shock response in human diploid fibroblasts (1992)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 153 (1992), S. 460-466 
    Details
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Submicromolar concentrations of tributyltin (TBT), a commercially used organotin compound, were found to induce the expression of several stress proteins, most notably HSP89 and HSP70, in IMR-90 human diploid fibroblats in a time- and dose-dependent manner. This induction can be demonstrated by quantitation of 1) synthesis of the heat shock proteins (HSPs), 2) relative abundance of mRNA of hsp70, and 3) transient expression of a human hsp70 promoter driven reporter gene. TBT also increased the abundance of mRNA of heme oxygenase, whereas heat shock was without effect. Analysis of protein binding to a consensus heat shock element (HSE)by electrophoretic mobility shift assay suggests that the induction of the heat shock response by TBT was attributable to activation of the heat shock transcription factor (HSTF). © 1992 Wiley-Liss, Inc.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcp.1041530304
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