Trace organic analysis are for organic compounds present at or below the part-per-thousand level in a sample. The analysis provides the identity (qualitative result) and the amount (quantitative result). The challenge is to perform the analysis under conditions where the relative amounts of other substances in the sample are vastly greater than that of the analyte. Oftenly it becomes necessary to separate the analyte from the bulk of the other substances such as potential interferences, in the sample for e.g.matrix, before a final determination (amount) can be accomplished. Generally, the final determination involves a final separation/detection. Scientific journal is a periodical publication intended to further progress of science, usually by reporting novel research. There are thousands of scientific journals
in publication, and many more have been published at various points in the past. Most journals
are highly specialized, although some of the oldest journals
and scientific papers across a wide range of scientific fields. Scientific journals
that are peer reviewed, to ensure that articles
meet the journal's standards of quality, and scientific validity. The publication of the results of research is an essential part of the scientific method. If they are describing experiments or calculations, they must supply enough details that an independent researcher could repeat the experiment or calculation to verify the results. Each such journal article becomes part of the permanent scientific record.
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