Table 4.

Sources of OTA occurrence data for Canada.

Project	Survey years	Limit of detection (LOD) (ng OTA g−1)	Limit of quantification (LOQ) (ng OTA g−1)	Recovery (%)a	Reference
Canadian Grain Commission (CGC)	1994–2005	–	1	88.4	CGC – TW Nowicki, Personal Communication
HC – rice	1993–1995	−−−	0.5	97.0	HC – Dr. P Pantazopoulos, Personal Communication
HC – breakfast cereals	1999/2000–2001/2002	0.05	0.2	83.3	Roscoe et al. (2008)
HC – bran cereals	2004/2005–2005/2006	0.05, 0.2	0.2, 0.5	93.0	HC – Dr. P Pantazopoulos, Personal Communication
HC – infant cereals	1997/1998–1999/2000	–	0.2, 0.5	92.0	Lombaert et al. (2003)
HC – infant cereals	1998–1999, 2000–2002	0.15	0.5	96.1	HC – Ms V Roscoe, Personal Communication
HC – soy-based infant formula	2000–2001	0.05	0.2	85.4	HC – Ms V Roscoe, Personal Communication
HC – beer	1995	0.05, 0.1	–	95.3	Scott and Kanhere (1995)
HC – wine and grape juice	1999/2000–2001/2002	0.008b	0.04b	87.4	Ng et al. (2004)
HC – coffee	1997–1998	–	0.1	78.5	Lombaert et al. (2002)
HC – dried fruit	1998/1999–2000/01	0.03	0.1	81.0	Lombaert et al. (2004)
HC – pork kidney	1990–1997	–	0.5, 1.0	91.7	HC – Kuiper-Goodman et al, 1993; Mr G Lombaert, Personal Communication
HC – pasta	2004–2006	0.2, 0.05	0.5, 0.2	91.0	Ng et al. (2009)

Notes: ^aRecovery is the mean of all recoveries.

^bWhite wine had an LOD = 0.004 ng OTA g⁻¹ and an LOQ = 0.02 ng OTA g⁻¹ compared with 0.008 and 0.04 ng OTA g⁻¹ for red wine and grape juice, respectively, indicated above.