{"id":2841,"date":"2019-02-28T15:45:25","date_gmt":"2019-02-28T14:45:25","guid":{"rendered":"https:\/\/www.pica-berlin.de\/?p=2841\/"},"modified":"2019-02-28T15:45:25","modified_gmt":"2019-02-28T14:45:25","slug":"sensitive-determination-of-26-diisopropylnaphthalen-in-dried-food","status":"publish","type":"post","link":"https:\/\/www.pica-berlin.de\/en\/news\/sensitive-determination-of-26-diisopropylnaphthalen-in-dried-food\/","title":{"rendered":"Sensitive determination of 2,6-Diisopropylnaphthalen in dried food"},"content":{"rendered":"<p>Alkylnaphthalenes, which includes 2,6 diisopropylnaphthalene (2,6-DIPN), are used regularly as lubricants in the automotive industry [1]. Increasingly, these substances are detected in foods such as tea, cereals, and herbs. These alkylnaphthalenes, and also the 2,6-diisopropylnaphthalene (2,6-DIPN), are part of the MOAH fraction of petroleum or mineral oil hydrocarbons (MOSH \/ MOAH) and, like in case of anthraquinone, the source of this is recycled packaging materials on recovered paper. Further potential sources for the findings are environmental contamination (particulate matter) and production (eg. drying step by combustion of coal or wood). It results polyaromatic cyclic hydrocarbons (PAHs) and also the substituted PAHs such as 9,10-anthraquinone [2] (oxidation product of anthracene) and 2,6-DIPN (diisopropyl substitute of naphthalene).<br \/>\nBeside that 2,6-DIPN is used as a growth regulator [3] (as well as chloropropham, for example, for storage against germination in potatoes). Therefore, positive findings in food have been evaluated as a residue (the possible approach as a growth regulator).<br \/>\nOur laboratory has developed a highly sensitive method to determine 2,6 Disopropyl-naphthalene with the LOQ of 0.01 mg\/kg in tea, herbs and cereals.<\/p>\n<p>[1] <a href=\"https:\/\/www.exxonmobilchemical.com\/en\/products\/synthetic-base-stocks\/alkylated-naphthalene\">https:\/\/www.exxonmobilchemical.com\/en\/products\/synthetic-base-stocks\/alkylated-naphthalene<\/a><\/p>\n<p>[2] \u00a0\u00a0A. Romanotto, K. Gassert, Determination Of The Source Of Anthraquinone In Organic Tea Production. Oral presentation. Chemical reaction in food, February 2017, Prague<\/p>\n<p>[3]\u00a0<a href=\"https:\/\/www3.epa.gov\/pesticides\/chem_search\/reg_actions\/registration\/fs_PC-055803_01-Oct-03.pdf\">https:\/\/www3.epa.gov\/pesticides\/chem_search\/reg_actions\/registration\/fs_PC-055803_01-Oct-03.pdf<\/a><\/p>\n<p>&nbsp;<\/p>\n<p>Please contact us. We would be glad to inform you.<\/p>\n<p>Contact: Dr. Anna Romanotto (anna.romanotto@pica-berlin.de) or Tel.: +4930 255660062<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Alkylnaphthalenes, which includes 2,6 diisopropylnaphthalene (2,6-DIPN), are used regularly as lubricants in the automotive industry [1]. Increasingly, these substances are detected in foods such as tea, cereals, and herbs. These alkylnaphthalenes, and also the 2,6-diisopropylnaphthalene (2,6-DIPN), are part of the MOAH fraction&#8230;<br \/><a class=\"read-more\" href=\"https:\/\/www.pica-berlin.de\/en\/news\/sensitive-determination-of-26-diisopropylnaphthalen-in-dried-food\/\">>> Read more<\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[],"tags":[],"class_list":{"0":"post-2841","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"entry"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Sensitive determination of 2,6-Diisopropylnaphthalen in dried food - PiCA - Pr\u00fcfinstitut Chemische Analytik<\/title>\n<meta name=\"description\" content=\"Alkylnaphthalenes, which includes 2,6 diisopropylnaphthalene (2,6-DIPN), are used regularly as lubricants in the automotive industry . Increasingly, these\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.pica-berlin.de\/en\/news\/sensitive-determination-of-26-diisopropylnaphthalen-in-dried-food\/\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.pica-berlin.de\\\/en\\\/news\\\/sensitive-determination-of-26-diisopropylnaphthalen-in-dried-food\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.pica-berlin.de\\\/en\\\/news\\\/sensitive-determination-of-26-diisopropylnaphthalen-in-dried-food\\\/\"},\"author\":{\"name\":\"Andy Mechlinski\",\"@id\":\"https:\\\/\\\/www.pica-berlin.de\\\/#\\\/schema\\\/person\\\/78ec7a8296d758c4ebcd878612642fa7\"},\"headline\":\"Sensitive determination of 2,6-Diisopropylnaphthalen in dried food\",\"datePublished\":\"2019-02-28T14:45:25+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.pica-berlin.de\\\/en\\\/news\\\/sensitive-determination-of-26-diisopropylnaphthalen-in-dried-food\\\/\"},\"wordCount\":244,\"publisher\":{\"@id\":\"https:\\\/\\\/www.pica-berlin.de\\\/#organization\"},\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.pica-berlin.de\\\/en\\\/news\\\/sensitive-determination-of-26-diisopropylnaphthalen-in-dried-food\\\/\",\"url\":\"https:\\\/\\\/www.pica-berlin.de\\\/en\\\/news\\\/sensitive-determination-of-26-diisopropylnaphthalen-in-dried-food\\\/\",\"name\":\"Sensitive determination of 2,6-Diisopropylnaphthalen in dried food - PiCA - Pr\u00fcfinstitut Chemische Analytik\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.pica-berlin.de\\\/#website\"},\"datePublished\":\"2019-02-28T14:45:25+00:00\",\"description\":\"Alkylnaphthalenes, which includes 2,6 diisopropylnaphthalene (2,6-DIPN), are used regularly as lubricants in the automotive industry . 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