Services

CONSULTANCY
If your laboratory requires advice in setting up stable isotope methods and Quality Control for food authentication or if require expert interpretation or opinion on your food authenticity problem, please contact Food Forensics.

TRAINING
If you have recently acquired a gas isotope analyser system or if you have new staff or students that require training in bio-element (HCNS) stable isotope analysis, on-site training can be provided. A programme of training can be tailored to meet your specific requirements including introductory lectures and wet chemical preparative techniques (e.g. separation of protein fractions from honey AOAC method 991.41)

Hands-on training in bulk and compound specific stable isotope analysis are available using state-of-the-art equipment.

¹³C Analyses	Technique	Quantity of Sample	Days
¹³C of bulk organic material – duplicate J Sci Food Agric 1991, 56, 167-185	EA-IRMS	On request	7
Compound specific ¹³C of chromatographically separated component - duplicate	GC-IRMS	On request	14
¹³C of flavour compound - duplicate	EA-IRMS	0.5 g	7
¹³C of maple syrup – duplicate JAFC 55 (2007) 197-203	EA-IRMS	100 mL	7
¹³C of fruit juice citric acid – duplicate JAFC 33 (1985) 770-772	EA-IRMS	20 mL	7
¹³C of fruit juice pulp Analytica Chimica Acta 340 (1997) 21-29	EA-IRMS	20 mL	7
¹³C of honey (honey & protein) AOAC method 991.41	EA-IRMS	50 mL	7
¹³C of ethanol in wine or spirit EC regulation 440/ 2003, annex 2	GC-IRMS	50 mL	14
¹³C of beef defatted dry mass to verify maize feeding	EA-IRMS	100g	7

¹⁵N Analyses	Technique	Quantity of Sample	Days
¹⁵N of bulk organic material – triplicate J Sci Food Agric 56 (1991) 167-185	EA-IRMS	On request	7
¹⁵N of bulk crop material to assess the use of synthetic N fertilizer during cultivation JAFC 53 (2005) 5760-5765	EA-IRMS	On request	7

¹⁸O Analyses	Technique	Quantity of Sample	Days
¹⁸O of bulk organic material – triplicate RCM 13 (1999) 1685-1693	EA-IRMS	On request	7
¹⁸O of fruit juice water - duplicate ENV 12141 (CEN/TC174 N109)	Equilibration	50 ml	7
¹⁸O of wine juice water - duplicate OIV resolution ENO 2/96, (EC regulation 822/97)	Equilibration	50 ml	7

²H Analyses	Technique	Quantity of Sample	Days
²H of bulk organic material – triplicate JMS 33 (1998) 735-738	EA-IRMS	On request	7
Compound specific ²H of chromatographically separated component - duplicate	GC-IRMS	On request	14

³⁴S Analyses	Technique	Quantity of Sample	Days
³⁴S of bulk organic/inorganic material – triplicate Anal. Chem. 66 (1994), pp. 2816–2819.	EA-IRMS	On request	14