+ Site Statistics
+ Resolve Accession
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
Submit PDF Full TextSubmit PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

New method for microdetermination of triforine and its metabolite using thermal reaction with alcohol

, : New method for microdetermination of triforine and its metabolite using thermal reaction with alcohol. Journal of Agricultural & Food Chemistry 36(6): 1216-1220

A new method for microdetermination of triforine [TF 1,4-vis(2,2,2-trichloro-1-formamidoethyl)-piperazine] and its major metabolite [TF/2, 1-(2,2,2-trichloro-1-1formamaidoethyl)piperazine] is described. Thermal reaction of triforine or TF/2-HCl [1-(2,2,2-trichloro-1-formamidoethyl)piperazinium 4-hydrochloride] with several alcohols in a closed glass tube resulted in formation of highly sensitive compounds to electron capture detector (ECD) on gas chromatography (GC). The compounds were identified as N-(1-alkoxy-2,2,2-trichlorethyl)formamides. The reaction was applied to the residue analysis of triforine and TF/2 in several crops. The analytical method involves extraction with acetone, separation to triforine and TF/2 portions by liquid-liquid partition, thermal reaction with methanol, and analysis by GC. Minimum limits of detections were 0.005 ppm for triforine and 0.01 ppm for TF/2-HCl. Recoveries of added triforine and TF/2-HCl from peach, green pepper, and strawberry averaged 99% and 70%, respectively.

Order PDF Full Text


Click here to order any other PDF Full Text

Accession: 001893920

DOI: 10.1021/jf00084a022

Download PDF Full Text: New method for microdetermination of triforine and its metabolite using thermal reaction with alcohol

Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:

Other references

Lopatin, A.; Kondrashov, P., 2003: The skull structure of Sinomylus. Journal of Vertebrate Paleontology 23(3 Supplement): 72A-73A, 12 September

Burgess, P., 1952: The 'Lever Aid' in the knife testing of plywood. The use of the 'Lever Aid', consisting of a knife, a lever, a ball joint between the knife and lever and two hinges on the lever permitting simultaneous action in the horizontal and vertical planes, reduces the muscular effort needed by...

Deborah, M.; Jawahar, A.; Mathavan, T.; Kumara Dhas, M.; Benial, A.Milton.Franklin., 2014: Spectroscopic studies on covalent functionalization of single-walled carbon nanotubes with glycine. Single-walled carbon nanotubes (SWCNTs) have a great potential in a wide range of applications, but faces limitation in terms of dispersion feasibility. The functionalization process of SWCNTs with the amino acid, glycine involves oxidation reacti...

Kaufman, B.; Sorokina, V., 1986: Daily rhythms of photopreferendum in horseflies (Diptera, Tabanidae) and their egg parasite Telenomus angustata Thomson (Hymenoptera, Scelionidae). Entomological review 65(2): 46-49

Teramoto H.; Konishi T.; Sasaki T.; E.A., 1991: Moraxella phenylpyruvica induced acute exacerbation in a case with diffuse panbronchiolitis. A 58 year-old female with diffuse panbronchiolitis (DPB) was admitted to our hospital because of acute exacerbation with complaints of productive cough, sputa and dyspnea. Many gram-negative rods were isolated from sputa. They were also engulfed b...

Rusché, L.N.; Cruz-Reyes, J.; Piller, K.J.; Sollner-Webb, B., 1997: Purification of a functional enzymatic editing complex from Trypanosoma brucei mitochondria. Kinetoplastid mitochondrial RNA editing, the insertion and deletion of U residues, is catalyzed by sequential cleavage, U addition or removal, and ligation reactions and is directed by complementary guide RNAs. We have purified a approximately 20S...

Lencioni, R.; Aliberti, C.; de Baere, T.; Garcia-Monaco, R.; Narayanan, G.; O'Grady, E.; Rilling, W.S.; Walker, D.; Martin, R.C.G., 2014: Transarterial treatment of colorectal cancer liver metastases with irinotecan-loaded drug-eluting beads: technical recommendations. Transcatheter hepatic arterial administration of irinotecan-loaded drug-eluting beads (DEBIRI) is used to treat liver-only or liver-dominant metastatic disease from colorectal cancer (CRC). Eligibility for DEBIRI should be established in each indi...

Hwang, S-Lin.; Wu, C-Hsin.; Chen, Y-Ting.; Tsai, T-Hsin.; Chu, C-Wei.; Lee, K-Shing., 2012: Monoparesis of the leg caused by thoracic vertebral hemangioma: a case report. Neurological Sciences 33(3): 709-710

Terashima, J.; Yasuhara, N.; Iwami, M.; Sakurai, S., 2000: Programmed cell death triggered by insect steroid hormone, 20-hydroxyecdysone, in the anterior silk gland of the silkworm, Bombyx mori. Silk glands are larval specific organs of lepidopteran insects and begin to degenerate shortly before pupation. Programmed cell death (PCD) of the anterior silk gland of Bombyx mori last instar larvae was studied in vivo and in vitro, focusing on...

Obata, T.; Sato, T.; Arita, M.; Yamanaka, Y., 1999: Nitric oxide increases adenosine production in rat hearts via cGMP-mediated activation of ecto-5-nucleotidase. Japanese Journal of Pharmacology 79(SUPPL 1): 159P