nias or ias? – issues from a laboratory view - · pdf filenias or ias? – issues...
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GALAB Laboratories GmbH
Carsten Saal
NIAS or IAS? –Issues from a Laboratory view
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� Introduction
� Company
� Our techniques and tests
� IAS and NIAS – general Background
� Non-target screening method
� Examples: NIAS or IAS?
Outline
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� Founded in 1992
� New Building 2012 (Hamburg Bergedorf)for 200 employees on 4500 m2
Hamburg (Germany)Memmingen (Sales office) Izmir, Turkey (Sales office)
Our company
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Hamburg
Hamburg Bergedorf (2013)
Our New Site (2014 completed)
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Our Company
GALAB and its location
Hamburg 135 employees
Distribution of sales
- 50% Germany
- 30% Europe
- 20% worldwide
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Our New Site
Chemical
LaboratoriesSampling and
preparation
Analyses and
evaluation
Microbiology /
Molecular biology
Sensory laboratory
administration
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Our pillars
Food 60 %
Consumer goods 30 %
BioPharma 5 %
Environment 5 %
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Our profile
fruits, vegetables, dried foods, tea, coffee, oil seeds,
rice, pastery, pastries, egg, eggproducts, milk, seafood, oils, cereals
Convenience food, baby food
Food
Consumer goods
personal care, food packaging, paper, card board, nonwoven, plastics, textiles, toys, consumer goods, adhesives, hotmelts, inks, coating,
pigments
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Our Products
� We work with more than 500 Methods and analysemore than 5000 single substances in all kind of matrices
� Every Year more than 100 new substance are added
Allergens, Drug Residues, Assays, Dioxins, Elements, Endocrine Disruptors, Genetic Modified Organismn (GMO), Migration, Microbiology, MOAH, MOSH, Nonylphenols, Pesticides, Physical Testings, Product-Specifications, Protein Separation, Raw Materials, Residues, Radioactivity, Heavy Metals, SVHC, Toxins, Tributyltin, Contaminants, Packaging, Flame retardants, Phthalates, PAA, Non Target Screening
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Some impressions of the Lab…
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Our Team – Our State-of-the-art EquipmentAnalysis with Highest Sensitivity
Technical equipment: LC-MS/MS
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Our Team – Our State-of-the-art EquipmentAnalysis with Highest Sensitivity
Technical equipment: GC-MS/MS
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Project (BMEL): FOODOMICS
„Non-Targeted Metabolom-Analysis by highresolutiontime-of-flight-Massspectrometry (LC-QTOF-MS) to determinethe authenticity of food“
Goals: „metabolomic profiling“
� Determination of origin- and species.
� Distinction between conventional and organic farming
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QTOF-MS mit Ion Mobility
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Ionen-Mobility
Possible seperation of isobaric components
He - „air resistance“
N2 - „Dipol-interactions“
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Common Markers
Markers prominent in Long Grain
Marker Importance
Ma
rke
r C
on
fide
nce
Markers prominent in Basmati
S Plot: Basmati vs Long grain
Quelle: Cleland G, Waters Appl. Note (2015)
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Background:
NIAS or IAS?
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Typical Limits – IAS and NIAS
0,1 % (w/w) = 1g per Kilogramm
„Not Detectable“ = 10µg/kg or 10ppb
- e.g. for substances which are not toxic evaluated(food)
ALARA = „As Low As Reasonably Achievable“
- Based on radiation protection
- used for CMR substances (Cancerognic, mutagenicand toxic to reproduction)
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The Supplychain – Nobody knows all about theproduct…
Packaging
supplier
Suppliers of rawmaterials:
- Paper
- Inks
- Pigments
- plastics
Food producer
Shops
Discounter
Laboratory
„intentionally used“
„not itentionally used“
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Non-target-screening method
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Non-target- or „10ppb“- screening“
Internal Standard
GC-MS TIC Chromatogramm (Mol-masses 33Da – 800 Da)
10 ppb level
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Non-target screening results
Analytical data:
comment
compound Identification ( by data or SRM-method)
almost certainly compound Database, experience*
possible compound Database*
unknown Mass spectra*
*Evaluation possible if compered to IS:
“Overall measurement uncertainty”: -50%/+100% & risk of false positive/ negative
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Qualifying screening results for validation andconformity for food contact
Analytical data:
- SRM or MRM methods
- retention time
- target masses
- qualifier masse(s) (ratio to target mass)
- Migration tests acc. to REG (EU) 10/2011Food simulantEU (VO) 10/2011
Abb. Example
10 % Ethanol A Honey
3% acetic acid B Vinegar
20% Ethanol C Liqueur
50% Ethanol D1 Milk
Vegetable oil D2 Pesto
modifiedPolyphenylenoxideMPPO (Tenax®)
E (e.g. Spaghetti)
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Examples:
NIAS and IAS
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Example 1 : Non target screening
Order:
- Extractive screening on a multilayer food contact material.
Procedure:
- Extraction of every layer and composite film by isooctane and 95% ethanol.
- GC-MSD screening.
Evaluation:
- Identification of peaks.
- Ratio of peak areas of composite film to single layer
PP film
(food contact layer)
nonwoven
PE film
Composite film
PU-adhesive
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Result: Multilayer film
?
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Identification of the unknown
- possible component:
cyclic esther which is formed by adipicacid with diethylene glycol.
- Identification by reference substance
- Quantification:
0,108 mg/dm² (migration)
0,648 mg/kg (food simulant)
Not toxic evaluated = 10 ppb criteria !?
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Toxic evaluation of NIAS
- PU-Monomers are listed in REG (EU) 10/2011
- PU-adhesive is according to BFR recommendation XXVII
- acc. to (EU) Nr. 10/2011 passage 19-20: „…Reactionproducts should be
evaluated for risk assessment by the producer..“
- Result Risk assessment (Producer): Re-degration during digestion to thestarting monomers and a less bioavailibility of the cyclic esthers.
- 10ppb criteria is „not applicable“ for these NIAS
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Background:
• Ortho-Phenylphenol
• No approved preservative
for strawberries (EC No. 396/2005)
• content strawberry: 0,08 mg/kg
Example 2 – Migration from packaging
Source
•Ortho-Phenylphenole,
approved preservative for paper/ board
(acc. to BfR-recommendation up to 0,01%)
•content: 10 mg/kg
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Example 3: Mineral oil
MOSH(mineral oil saturated hydrocarbons):
MOAH (mineral oil aromatic hydrocarbons) (acc. to K. Grob: > 97% alkylated)
POSH (polyolefin saturated hydrocarbons) :
Oligomere aus Polyolefinen wie PE und PP
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Draft Technical Guide Paper & Board Materials and Articles (April 2015):
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Example 3 – mineral oil in black pepper
chainlenght fraction Black pepper A[mg/kg]
Black pepper B[mg/kg]
Guideline value/ Limit draftregulation
C10 – C16 MOSH 16 0,84 12 mg/kg
C16 – C20 MOSH 320 5,2 4 mg/kg
C20 – C35 MOSH 2870 11 2 mg/kg
C10 – C35 MOAH 1,6 8,5 0,5 mg/kg
Possible intentionally use of a mineral oil product duringproduction!
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Carsten SaalCustomer Services
Consumer Products
Contact:
+49 40 36 80 77-433
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