The reference material presented consists of patients consecutively referred to a tertiary referral headache centre and thus should be representative for patients seen in specialist headache centres.
It is organized as follows: reference material is presented in Sect.
It can be concluded from the corresponding simulations that based on the properties of the present reference materials LaNi4.3Al0.4Mn0.7 and 2 LiNH2–1.1 MgH2–0.1LiBH4–3 wt.% ZrCoH3, the hydrogen desorption performance of the materials in this reaction geometry is good.
The measured mass fractions of the OPAHs in the standard reference materials (SRMs) in this present study are higher than the values from the literature, except for benzanthrone in SRM 1649a (Urban Dust).
The standard reference materials used in this present study were the following: SRM 1649a (Urban Dust) [ 31], SRM 1650b (Diesel Particulate Matter) [ 32], and SRM 2975 (Diesel Particulate Matter, Industrial Forklift) [ 33], all of which were purchased from the National Institute of Standards and Technology (NIST, Gaithersburg, MD, USA).
Such wide data scattered around the world and similar future data might be an ideal reference material for either: present or future space missions, as well as for evaluation of different products obtained by post processing of satellite data.
Furthermore, a good reference material for the present population is important when monitoring future trends in obesity, MS and PA behaviour in Denmark and other countries.
Due to its reported lack of toxicity and on account of its extensive characterization in the OECD sponsorship programme, BaSO4 was used as 'negative control' reference material in the present study.
Many of the reference materials we used to prepare the present article were not written in English or were not retrievable from current electronic databases.
In the paper, the results obtained in preparation of the new reference materials for benzene and toluene are presented, based on the thermal decomposition technique of compounds chemically bound to the surface of optical fibre segments.
In these reports, the bias, repeatability and reproducibility of the methods are presented for DNA from reference materials of different percentages.
