Dibenz pyrene

Note Bi, biphenyl Nap, naphthalene Phe, phenanthrene Anth, anthracene Hu, fluoranthene Pyr, pyrene Chr, chrysene BaAnth, benz[a]anthracene BaPyr, benzo[a]pyrene BbFlu, benzo[h]fluoranthene DBaAnth, dibenz[a,/i]anthracene 3-Me-Chol, 3-methylcholanthrene. 

Juhasz AL, ML Britz, GA Stanley (1997) Degradation of benzo[a]pyrene, dibenz[(3,/j]anthracene and coronene by Burkholderia cepacia. Water Sci Technol 36 45-51. 

The biodegradation of pyrene, chrysene, fluoranthene, benz[a]anthracene, dibenz[a,/t] anthracene, benzo[a]pyrene, and coronene by Stenotrophomonas maltophilia has been studied in the presence of a range of synthetic surfactants (Boonchan et al. 1998). Nonneutral surfactants were toxic, biodegradation was also inhibited by the neutral Igepal CA-630, and the positive enhancement of removal of substrates was generally low—in the range of 10%. 

Coman et al. [82] used a new modeling of the chromatographic separation process of some polar (hydroxy benzo[a]pyrene derivatives) and nonpolar (benzo[a]pyrene, dibenz[a,/ ]anthracene, and chrysene) polycyclic aromatic compounds in the form of third-degree functions. For the selection of the optimum composition of the benzene-acetone-water mobile phase used in the separation of eight polycyclic aromatic compounds on RP-TLC layers, some computer programs in the GW-BASIC language were written. 

Methods for the synthesis of the biologically active dihydrodiol and diol epoxide metabolites of both carcinogenic and noncarcinogenic polycyclic aromatic hydrocarbons are reviewed. Four general synthetic routes to the trans-dihydrodiol precursors of the bay region anti and syn diol epoxide derivatives have been developed. Syntheses of the oxidized metabolites of the following hydrocarbons via these methods are described benzo(a)pyrene, benz(a)anthracene, benzo-(e)pyrene, dibenz(a,h)anthracene, triphenylene, phen-anthrene, anthracene, chrysene, benzo(c)phenanthrene, dibenzo(a,i)pyrene, dibenzo(a,h)pyrene, 7-methyl-benz(a)anthracene, 7,12-dimethylbenz(a)anthracene, 3-methylcholanthrene, 5-methylchrysene, fluoranthene, benzo(b)fluoranthene, benzo(j)fluoranthene, benzo(k)-fluoranthene, and dibenzo(a,e)fluoranthene. 

DiGiovanni, J. and T.J. Slaga. 1981a. Effects of benzo(e)pyrene [B(e)P] and dibenz(a,c)anthracene [DB(a,c)A] on the skin tumor-initiating activity of polycyclic aromatic hydrocarbons. Pages 17-31 in M. Cooke and A.J. Dennis (eds.). Chemical Analysis and Biological Fate Polynuclear Aromatic Hydrocarbons. Fifth International Symposium. Battelle Press, Columbus, OH. 

XVII. Dibenz[a,h]anthracene XVIII. Coronene XIX. Dibenzo[a,e]pyrene... 

Fig. 5a-c. A typical distribution of polycyclic aromatic hydrocarbons in a atmospheric fallout sample, Alexandria City - Egypt b bottom incineration ash leachate of municipal solid waste - USA c hydrothermal petroleum, Escanaba Trough, NE Pacific Ocean. PAH Compound identifications N = naphthalene, MN = methylnaphthalene, DMN = dimethylnaphthalenes, P = phenanthrene, MP = methylphenanthrene, Fl = fluoranthene, Py = pyrene, BaAN = benzol anthracene, DH-Py = dihydropyrene, 2,3-BF = 2,3-benzofluorene, BFL = benzo[fc,/c]fluoranthene, BeP = benzo[e]pyrene, BaP = benzo[a]pyrene, Per = perylene, Cx-228 = methyl-228 series, Indeno = indeno[ l,2,3-c,d]pyrene, DBAN = dibenz[a,/z]anthracene, BPer = benzo[g,/z,z] perylene, AAN = anthanthrene, DBTH = dibenzothiophene, Cor = coronene, DBP = dibenzo [a,e]pyrene, DBPer = dibenzo [g,h,i] perylene... 

FIGURE1.15 Separation of the 16 EPA priority pollutants PAHs with ODS column using an acetonitrile water 70 30 (v/v) solution as mobile phase. Thiourea was used as standard. Detection performed at 254 nm and 30°C. PAHs 1, naphthalene 2, acenaphtylene 3, fluorene 4, acenaphthene 5, phenanthrene 6, anthracene 7, fluoranthene 8, pyrene 9, chrysene 10, benz(a)anthracene 11, benzo(fc)fluoranthene 12, benzo(l )fluoranthene 13, benzo(a)pyrene 14, dibenz(a,/i)anthracene 15, indeno(l,2,3-cd)pyrene and 16, benzo(g,/j,/)perylene). (Reprinted from Nunez, O. et al., J. Chromatogr. A, 1175, 7, 2007. Copyright 2007, with permission from Elsevier.)... 

FIGURE 19.24 HPLC separation of a standard mixture of 16 EU-priority PAHs plus EPA-priority PAHs, benzo[e]pyrene and benzo[fc]chrysene. Na=naphthalene, Ac = acenaphthylene, E=fluorene, Pa=phenan-threne, A = anthracene, El = fluoranthene, P = pyrene, BcE = benzo[c]fluoranthene, CPP = cyclopenta[c,4] pyrene, BaA = benz[a]anthracene, Ch = chrysene, 5-MeCh = 5 methylchrysene, BeP = benzo[e]pyrene, BjE = benzo[/ ]fluoranthene, BbF = benzo[h]fluoranthene, BkE = benzo[l ]fluoranthene, BaP = benzo[a]pyrene, DBahA = dibenz[a,/j]anthracene, DBalP = dibenzo[a,l]pyrene, BghiP = benzo[g,/j,i]perylene, IP = indeno [l,2,3-c4]pyrene, DBaeP = dibenzo[a,e]pyrene, BbCh = benzo[h]chrisene, DBaiP = dibenzo[a,i]pyrene,... 

Figure 1. Gas chromatogram of PAH in a work atmosphere a, particulate PAH b, gaseous PAH. The peak identities are 1, naphthalene 2, 2-methylnaphthalene 3, 1 -methylnaphthalene 4, biphenyl 5, acenaphthene 6, dibenzofuran 7, fluorene 8, 2-methylfluorene 9, 1-methylfluorene 10, dibenzothiophene 11, phenanthrene 12, anthracene 13, methylphenanthrene/methylanthracene 14, methylphenan-threne/methylanthracene 15, 2-methylanthracene 16, 4,5-methylenephenanthrene 17, methylphenanthrene/methylanthracene 18,1-methylphenanthrene 19, fluoranthene 20, benzo(def)dibenzothiophene 21, pyrene 22, ethylmethylenephena-threne 23, benzo(a)fluorene 24, benzofb)fluorene 25, 4-methylpyrene 26, meth-ylpyrene 27, 1-methylpyrene 28, benzothionaphthene 29, benzo(c)phenanthrene 30, benzophenanthridine 31, benzo(2i)anthracene 32, chrysene/triphenylene 33, benzo(b)fluoranthene 34, benzof])fluoranthene 35, benzo(k)fluoranthene 36, ben-zo(c)pyrene 37, benzofa)pyrene 38, perylene 39, indenof 1,2,3-cd)pyrene 40, dibenz(a, /a,h)anthracenes 41, benzofghi)perylene 42, anthanthrene 43, coro-...

The diepoxides 60 and 61 of pyrene and dibenz[a,fi]anthracene have been prepared in 19 and 80% yields35 from 62 and 63, respectively. And... 

Based on this sequence, Blum et a/.158 have reported a general synthesis of unsubstituted K-region arene imines from the corresponding arene oxides. K-Imines of benz[a] anthracene, 7-methylbenz[a]anthracene, dibenz [a,/i] anthracene, and benzo[a] pyrene have been prepared. Azido alcohol formation from these oxides is generally nonregiospecific and both possible regioisomers of the azido alcohols are formed in different proportions. 

Benzo(e)pyrene Dibenz(a,h)anthracene Dibenz(a,h)acridine... 

Fig. 2.20. Composition (mean%) of 16 individual polycyclic aromatic hydrocarbons (PAHs) to total PAHs detected in various environmental media in (a) air (n = 24), (b) soil (n = 226), (c) freshwater (n = 46), and (d) marine sediment (n = 159), from the South Korea. Naphthalene NAP, Acenaphthylene ACY, Acenaphthene ACE, Fluorine FLU, Phenanthrene PHE, Anthracene ANT, Fluoranthene FLT, Pyrene PYR, Benz[a]ant-hracene BaA, Chrysene CHR, Benzo[6]fluoranthene BbF, Benzo[ ]fluoranthene BkF, Benzo[a]pyrene BaP, Indeno[l,2,3,c,d]pyrene I123cdP, Dibenz[a,/z]anthracene DahA, Ben-zo[g,/y ]perylene BghiP.

Fig. 10.1. Separation of polycyclic aromatic hydrocarbons (PAHs) on columns packed with Spherisorb ODS particles. Conditions (A) 35(43) cm x 50 pm i.d. fused silica capillary column packed with 3 pm Spherisorb ODS-1 particles (B) 41(53) cm x 75 pm i.d. fused-silica capillary column packed with 5 pm Spherisorb ODS-1 particles 30 kV applied voltage 5 kV, 5 s electrokinetic injection acetonitrile-50 mM Tris buffer, pH 8.1 (80 20 v/v). Peak identifications 1, benzene 2, naphthalene 3, acenaphthylene 4, fluorene 5, acenaphthene 6, phenanthrene 7, anthracene 8, fluoranthene 9, pyrene 10, benz[n]anthracene 11, chrysene 12, benzo[6]fluoranthene 13, benzo[fc]fluoranthene 14, benzo[a]pyrene 15, dibenz[n,/i]anthracene 16, indeno[7,2,3-af]pyrene 17,...

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