Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Determination of 1,2-diols by indirect atomic absorption with digested lead periodate (1980)
    s.l. : American Chemical Society
    Analytical chemistry 52 (1980), S. 602-604 
    Details
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ac50053a062
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Separation and identification of cis/trans carotenoid isomers (1991)
    s.l. : American Chemical Society
    Journal of agricultural and food chemistry 39 (1991), S. 1438-1443 
    Details
    ISSN: 1520-5118
    Source: ACS Legacy Archives
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jf00008a015
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Analytical and Preparative Chromatography of Tomato Paste Carotenoids (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 53 (1988), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Tomato paste carotenoids were separated by gradient-elution normal-phase open-column chromatography and analyzed by isocratic-elution reverse-phase HPLC with UV-VIS photodiode array detection. The normal-phase elution order of the trans pigments was phytoene, phytofluene, beta-, zeta-, gamma-carotene and lycopene. The four dominant tomato paste carotenoids (550 ppm), in increasing quantities, were phytofluene, beta-carotene, phytoene and lycopene. Simultaneous multi-channel monitoring and rapid spectral scans allowed the detection of cis-isomers (e.g., lycopene, phytofluene and beta-carotene) and minor carotenoid components (e.g., alpha-carotene, lycoxanthin and cis-mutatoxanthin). Presentation of results in isograms (wavelength versus retention time) and an extraction scheme will be discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1988.tb08994.x
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Acid precipitation effect on anion transport of the Atkins Reservoir, Massachusetts (1986)
    Springer
    Archives of environmental contamination and toxicology 15 (1986), S. 321-326 
    Details
    ISSN: 1432-0703
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Abstract The anion concentration of the water in the precipitation reservoir and its watershed of Atkins Reservoir, Massachusetts was studied. In the precipitation study, the NO3 − and SO4 2− levels increased with a pH drop andvice versa, but the Cl− was interfered with by regional marine air masses. The average pH of precipitation and the reservoir were 3.85 (SD=±0.89) and 6.08 (SD= ±0.18), respectively. The average alkalinity of the reservoir was very low; 0.88 mg/L CaCO3 (SD= ±0.68). The precipitation and reservoir concentrations of anions were: F− (0.5 and 0.2 ppm), Cl− (2 and 4 ppm), and SO4 2− (7 and 7.8 ppm), respectively. The NO3 − level in the precipitation (4 to 6 ppm) was at least an order higher than the reservoir (0.2 to 0.4 ppm) and this was due to selective NO3 − uptake by terrestrial plants. About 50% of the samples collected at the bottom of the reservoir were high in NO3 − where organic decomposition would be expected. The response of the SO4 2− and and Cl− levels to pH drop in the reservoir inlet study followed a SO4 2− retention-Cl− release mechanism. The F− concentration in the precipitation and reservoir was not dependent on pH changes. The lack of F− in soil samples adjacent to the reservoir indicated that the F− in the reservoir came primarily from precipitation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01061109
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Extent and effect of acid precipitation in northeastern United States and eastern Canada (1989)
    Springer
    Archives of environmental contamination and toxicology 18 (1989), S. 55-63 
    Details
    ISSN: 1432-0703
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Abstract The alkalinity-to-Σ(base cations) (ABC) ratios and [Aln+ and H+]-versus-[SO4 2−/Σ(base cations)] (AHSBC) plots were used to assess acid precipitation (AP) in northeastern USA and eastern Canada. ABC ratios were used to study the extents when the AP was not severe, and AHSBC plots were used to study the effects when the AP was severe. The Appalachians with calcareous bedrocks were least affected by AP (ABC ratio, 0.65), three New England States were subject to intermediate AP (ABC ratios, 0.49), and the Canadian Shield, New Hampshire and certain Adirondack lakes showed the effects of advanced AP (ABC ratios, 0.29). Groundwater hydrology also affects ratios where highest ABC ratios were recorded for lowest groundwater velocities (largest residence time), and vice versa in Quabbin Reservation, Massachusetts. Lower ABC ratios and higher AHSBC acidic cations in spring compared to summer confirmed the fact the H+ ions were released from spring snowmelt. AHSBC plots had decreasing ABC ratios from left to right when the contribution from Aln+ and organic acids was minimal, ABC ratios were large(e.g., Appalachian and Massachusetts); when the contribution of acidic cations dominated, ABC ratios were small(e.g., certain Adirondack lakes). Limitations associated with the ratio and plot in making interpretations are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01056190
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Effects of 3-methylcholanthrene on the hepatic microsomal enzymes in a teleost,Tilapia aurea (1983)
    Springer
    Bulletin of environmental contamination and toxicology 31 (1983), S. 292-296 
    Details
    ISSN: 1432-0800
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01608701
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Anion content in charcoal filters and in water samples stored in various containers (1986)
    Springer
    Bulletin of environmental contamination and toxicology 37 (1986), S. 668-671 
    Details
    ISSN: 1432-0800
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01607821
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Responses of the hepatic enzymes of a teleost fish totrans-stilbene oxide treatment (1981)
    Springer
    Bulletin of environmental contamination and toxicology 26 (1981), S. 801-806 
    Details
    ISSN: 1432-0800
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01622174
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...