TY  - JOUR
A1  - Hackethal, Christin
A1  - Kopp, Johannes Florian
A1  - Sarvan, Irmela
A1  - Schwerdtle, Tanja
A1  - Lindtner, Oliver
T1  - Total arsenic and water-soluble arsenic species in foods of the first German total diet study (BfR MEAL Study)
JF  - Food chemistry
N2  - Arsenic can occur in foods as inorganic and organic forms. Inorganic arsenic is more toxic than most watersoluble organic arsenic compounds such as arsenobetaine, which is presumed to be harmless for humans. Within the first German total diet study, total arsenic, inorganic arsenic, arsenobetaine, dimethylarsinic acid and monomethylarsonic acid were analyzed in various foods. Highest levels of total arsenic were found in fish, fish products and seafood (mean: 1.43 mg kg(-1); n = 39; min-max: 0.01-6.15 mg kg(-1)), with arsenobetaine confirmed as the predominant arsenic species (1.233 mg kg 1; n = 39; min-max: 0.01-6.23 mg kg (1)). In contrast, inorganic arsenic was determined as prevalent arsenic species in terrestrial foods (0.02 mg kg (1); n = 38; min-max: 0-0.11 mg kg (1)). However, the toxicity of arsenic species varies and measurements are necessary to gain information about the composition and changes of arsenic species in foods due to household processing of foods.
KW  - Occurrence data
KW  - Food
KW  - Total arsenic
KW  - Arsenic speciation
KW  - Inductively
KW  - coupled plasma mass spectrometry
Y1  - 2021
U6  - https://doi.org/10.1016/j.foodchem.2020.128913
SN  - 0308-8146
SN  - 1873-7072
VL  - 346
PB  - Elsevier
CY  - Amsterdam [u.a.]
ER  - 
TY  - JOUR
A1  - Decker, Gero
A1  - Kopp, Oliver
A1  - Leymann, Frank
A1  - Weske, Mathias
T1  - Interacting services : from specification to execution
N2  - Interacting services play a key role to realize business process integration among different business partners by means of electronic message exchange. In order to provide seamless integration of these services, the messages exchanged as well as their dependencies must be well-defined. Service choreographies are a means to describe the allowed conversations. This article presents a requirements framework for service choreography languages, along which existing choreography languages are assessed. The requirements framework provides the basis for introducing the language BPEL4Chor, which extends the industry standard WS-BPEL with choreography-specific concepts. A validation is provided and integration with executable service orchestrations is discussed.
Y1  - 2009
UR  - http://www.sciencedirect.com/science/journal/0169023X
U6  - https://doi.org/10.1016/j.datak.2009.04.003
SN  - 0169-023X
ER  -