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BS EN 16857:2017

BS EN 16857:2017

$102.76

Foodstuffs. Determination of benzene in soft drinks, other beverages and vegetable-based infant foods by headspace gas chromatography mass spectrometry (HS-GC-MS)

Published By Publication Date Number of Pages
BSI 2017 18
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This European Standard specifies a method for the determination of benzene in soft drinks, other beverages and vegetable-based infant foods, by headspace gas chromatography mass spectrometry (HS-GC-MS). The method has been validated in an interlaboratory study via the analysis of spiked samples of carbonated soft drink, still fruit-based drink, carbonated fruit-based drink, vegetable and fruit juice containing carrot, infant food vegetable based and infant food containing meat, ranging from 1,9 µg/kg to 18,6 µg/kg. However, linearity of the instrument response was proven for the concentration range from 0,5 µg/kg to 20 µg/kg. The limit of quantification (LOQ) depends on the instrument but can generally be expected to be in the range from 0,5 µg/kg to 1,0 µg/kg.

PDF Catalog

PDF Pages PDF Title
2 National foreword
6 1 Scope
2 Normative references
3 Principle
4 Reagents
4.1 Benzene, C6H6, purity is ≥ 99,0 % (CAS 71-43-2).
4.2 Benzene-d6, purity is ≥ 99, 6 atom % D (CAS 1076-43-3).
4.3 Helium purified compressed gas, purity equivalent to 99,995 % or better.
4.4 Methanol, suitable for headspace GC analysis (CAS 67-56-1).
4.5 Preparation of stock and standard solutions
4.5.1 General
7 4.5.2 Benzene stock solution, mass concentration ρ approximately 2,20 mg/ml
4.5.3 Benzene intermediate standard solution, ρ approximately 54 µg/ml
4.5.4 Benzene standard solution, ρ approximately 0,5 µg/ml
4.5.5 Benzene-d6 internal standard (IS) stock solution, ρ approximately 2,36 mg/ml
4.5.6 Benzene-d6 internal standard (IS) solution, ρ approximately 4,2 µg/ml
4.6 Preparation of the calibration solutions
8 5 Apparatus
10 6 Procedure
6.1 General
6.2 Sample treatment
6.3 Test sample preparation
7 HS-GC-MS analysis
7.1 General
11 7.2 Headspace sampling conditions
7.3 Injection conditions for split/splitless injector
7.4 Oven conditions
7.5 Column conditions
7.6 Transfer line conditions
7.7 Mass spectrometer conditions
7.8 Mass spectrometer acquisition parameters and peak identification
12 7.9 Calibration curve
7.10 Sample analysis
13 8 Calculation
9 Precision data
9.1 General
9.2 Repeatability
14 9.3 Reproducibility
10 Test report
15 Annex A (informative)Typical chromatograms
16 Annex B (informative)Precision data

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BS EN 16857:2017
$102.76