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Article
Tannic acid- and natural organic matter-coated magnetite as green Fenton-like catalysts for the removal of water pollutants
The use of magnetic materials as heterogeneous catalysts has attracted increasing attention in the last years since they proved to be promising candidates for water treatment. In the present study, two types o...
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Article
Report on KOSMOS Summer University at the School of Analytical Sciences Adlershof (Berlin): limits and scales in analytical sciences
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Article
Double-pulse laser-induced breakdown spectroscopy for analysis of molten glass
A mobile double-pulse laser-induced breakdown spectroscopy system for industrial environments is presented. Its capabilities as a process analytical technique for the recovery of metals from molten inorganic w...
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Article
Procedure for the Impurity-Related Correction at the Indium Fixed-Point
Determining the influence of impurities on the fixed-point temperatures of the ITS-90 requires the completion of several tasks. In this paper, the progress made at Physikalisch-Technische Bundesanstalt (PTB) a...
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Article
Structure analysis using acoustically levitated droplets
Synchrotron diffraction with a micrometer-sized X-ray beam permits the efficient characterization of micrometer-sized samples, even in time-resolved experiments, which is important because often the amount of ...
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Chapter
Need for and Metrological Approaches Towards Standardization of Fluorescence Measurements from the View of National Metrology Institutes
The need for standardization in fluorescence measurements to improve quality assurance and to meet regulatory demands is addressed from the viewpoint of National Metrology Institutes (NMIs). Classes of f...
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Article
C and N stable isotope variation in urine and milk of cattle depending on the diet
The stable carbon and nitrogen isotopic composition of urine and milk samples from cattle under different feeding regimes were analysed over a period of six months. The isotope ratios were measured with isotop...
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Article
Characterization and discrimination of pollen by Raman microscopy
The chemical characterization and discrimination of allergy-relevant pollen (common ragweed (Ambrosia artemisiifolia), white birch (Betula pendula), English oak (Quercus robur), and European linden (Tilia cordata
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Article
Process analysis of biofilms by photoacoustic spectroscopy
Biofilms are aggregates of microorganisms and biopolymers which occur at aqueous interfaces. Biofilms play an important role in the degradation of pollutants in natural water systems as well as in wastewater ...
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Article
On-line monitoring of opaque liquids by photoacoustic spectroscopy
A new photoacoustic sensor system for on-line monitoring of highly concentrated and optical opaque liquid samples is presented. The dyeing of textiles is performed with highly concentrated dye solutions with c...
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Article
Strategies for the analysis of coal by laser ablation inductively coupled plasma mass spectroscopy
The potential of laser ablation inductively coupled mass spectrometry (LA-ICP-MS) was investigated for the inorganic characterization of different coal samples pressed into pellets. Reference analysis was per...
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Chapter
Time Resolved Excitation Emission (TEE) Spectra: A New Screening Tool Based on Multidimensional Fluorescence Spectroscopy
Fluorescence spectroscopy is a sensitive method for the detection of anthropogenic fluorescent pollutants, e.g., oils and fuels or polycyclic aromatic hydrocarbons (PAH), in our environment. However, for appli...
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Article
Determination of metal additives and bromine in recycled thermoplasts from electronic waste by TXRF analysis
A new method for analysis of metal additives in recycled thermoplasts from electronic waste was developed, based on dissolving the samples in an organic solvent and subsequent analysis of the corresponding so...
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Article
On-line and in-situ detection of polycyclic aromatic hydrocarbons (PAH) on aerosols via thermodesorption and laser-induced fluorescence spectroscopy
A fiber optical sensor system for the determination of polycyclic aromatic hydrocarbons (PAH) on aerosols by laser-induced, time-resolved fluorescence is combined with a thermodesorption device. The sensor sy...
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Article
Combination of asymmetric flow field-flow fractionation (AF4) and total-reflexion X-ray fluorescence analysis (TXRF) for determination of heavy metals associated with colloidal humic substances
To assess the structural variability of colloidal humic substances and the associated heavy metals an off-line coupling of asymmetric flow field-flow fractionation (AF4) with total-reflection X-ray fluorescence ...
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Article
On-line monitoring of chromium aerosols in industrial exhaust streams by laser-induced plasma spectroscopy (LIPS)
Ultrafine heavy metal aerosols can have severe toxic and carcinogenic effects when inhaled in higher concentrations. The objective of this work was to develop a mobile continuous emission monitor (CEM) based ...
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Chapter
Time-Resolved Excitation-Emission-Spectra for Screening of Residual Waste
For remote sensing of residual waste in water and soil, Polycyclic Aromatic Hydrocarbons (PAH) are of special relevance because of their carcinogenic and mutagenic properties. Due to the native fluorescence of...
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Chapter
Fast Elemental Screening of Colloidal Particle by Laser-Induced Plasma Spectroscopy (LIPS)
In the last years the influence of hydrocolloids on the migration of pollutants in the aquifer became a field of increasing interest. Especially, heavy metals and residues of organic contaminants can be bound ...
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Article
Element-specific determination of chlorine in gases by Laser-Induced-Breakdown-Spectroscopy (LIBS)
An experimental set-up for the detection of elemental chlorine in chlorinated hydrocarbons (CHCs) is described based on a miniaturized system, which could be used for on-line monitoring of chlorinated compound...
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Article
Laser spectroscopy for atmospheric chemistry: selected applications involving the fluorescence technique
The application of laser-based techniques to the study of different problems related to atmospheric chemistry is well established. Among the various laser spectroscopic methods, the focus here is directed towa...
