Similarities between the Dufour Gland Secretions of the Ants Camponotus ligniperda (Latr.) and Camponotus herculeanus (L.) (Hym.)

1972 ◽  
Vol 3 (3) ◽  
pp. 225-238 ◽  
Author(s):  
Jan Löfqvist ◽  
Gunnar Bergström

AbstractThe two ant species Camponotus ligniperda ,(Latr.) and Camponotus herculeanus (L.) show very small differences in morphology and general biology. The present work demonstrates that the two species are very similar also with respect to the composition of the volatile secretions emanating from Dufour's gland in worker ants. As in other formicine ant species analysed by us earlier, the main components are straight chain, satured hydrocarbons with II, I3, I5 and I7 carbons atoms. Tridecane is the dominating component. Unsatured, straight chain hydrocarbons and branched chain, saturated hydrocarbons are also present. We have also identified aliphatic alcohols, ketones and acetates as components of the secretion from Dufour's gland, as well as a11-trans-farnesyl acetate and one isomer of farnesene in trace amounts. Of these compounds hexadecyl acetate is the dominating one. The analyses have been carried out by combined gas chromatography and mass spectrometry and by capillary gas chromatography. In both techniques we have been using a precolumn for isolating the volatile compounds.

Author(s):  
Javzan S ◽  
Oyunbileg Yu ◽  
Nyamsuren E

In this study, seeds (I, II) and bark of seeds (III) of Sophora alopecuroides L (Fabaceae) growing in Mongolia were investigated for their alkaloid compositions. Main alkaloids were detected by capillary gas chromatography-mass spectrometry (GC-MS) from the alkaloid extracts of the seeds (I). As a result, nine alkaloids identified such as two alkaloids cytisine (1), and N-methylcytisine (2) cytisine type threecyclic quinolizidine alkaloids, one alkaloid 5.6-dihydrolupanine(4) sparteine type tetracyclic quinolizidine alkaloids, six alkaloids-matrine (5), matrine-N-oxide (6), sophocarpine (7), sophoridine (9), sophoramine (10), isoso-phoramine (11) matrine type tetracyclic quinolizidine alkaloids. Eight alkaloids were detected and identified from the seeds (II) by GC-MS method such as such as including cytisine (1), N-methylcytisine (2) cytisine type threecyclic quinolizidine alkaloids, one alkaloid a-isolupanine (3) sparteine type tetracyclic quinolizidine alkaloids, five alkaloid matrine (5), matrine-N-oxide (6), sopho-carpine (7), sophoranol (8), sophoridine (9) matrine type tetracyclic quinolizidine alkaloids. Five alkaloids were detected and identi-fied from the bark of seeds (III) by GC-MS method such as such as matrine (4), matrine-N-oxide (5), sophoramine (8), sophoridine (9) matrine type tetracyclic quinolizidine alkaloids and N-methoxycarbonylimidazol (12) other type quinolizidine alkaloids. The main components were identified as matrine (25.2%), matrine-N-oxide (46.2%), sophocarpine (4.40%), sophoramine (3.39%) from the seeds (I), while matrine (42.3%), matrine-N-oxide (27.35%),cytisine (6.14%), N-methylcytisine (4.38%) from the seeds (II) and matrine-N-oxide (46.26%), matrine (24.8%), sophoramine (9.38%), sophoridine (5.89%) from the bark of seeds in the species. N-methoxycarbonylimidazol was new for the genus Sophora. Үнэгэн сүүлхэй лидэрийн (Sophora alopecuroides L.) үр, үрийн хальсны алкалоидын судалгаа Хураангуй: Монгол оронд ургадаг Үнэгэн сүүлхэй лидэр (Sophora alopecuroides L.)–ийн үр (I), үр (II) ба үрийн хальсны (III) алкалоидын бүрэлдэхүүн, бүтцийн судалгааг Хийн-Хроматограф-Масс-Спектрометр (ХХ-МС) аргаар судлав. Үнэгэн сүүлхэй лидэрийн (ҮСЛ) үр (I) дээжнээс хинолизидиний уламжлалын 9 нэгдлийг таньж тодорхойлсон. Эдгээр нэгдлүүд нь хинолизидиний уламжлалын 3 цагригт 2 алкалоид-цитизин (1), N-метилцитизин (2), хинолизидиний уламжлалын 4 цагригт спартеины бүлгийн 1 алкалоид -5,6-дигидролупанин (4), хинолизидиний уламжлалын 4 цагригт матрины бүлгийн 6 алкалоид-матрин (5), оксиматрин (6), софокарпин (7), софоридин (9), софорамин (10), изософорамин (11) байв. ҮСЛ–ийн үр (II) дээжнээс хинолизидиний уламжлалын 3 ба 4 цагригт нэгдлийн бүлэгт хамаарах 8 нэгдлийг таньж тодорхойлов. Эдгээр нь цитизин (1), N-метилцитизин (2), α-изолупанин (3), матрин (5), оксиматрин (6), софокарпин (7), софоранол (8), софоридин (9) алкалоид байлаа. ҮСЛ–ийн үрийн хальсны (III) дээжнээс хинолизидиний уламжлалын 4 цагригт нэгдлийн бүлэгт хамаарах 4, бусад бүлэгт хамаарах нэг алкалоидыг таньж тодорхойлов. Эдгээр нь матрин (4), оксиматрин (5), софорамин (8), софоридин (9), бусад бүлэгт хамаарах N-метоксикарбонилимидазол (12) алкалоид байв. Үр (I) дээжний нийлбэр алкалоидын зонхилох нэгдлийг матрин (25.2%), N-оксиматрин (46.2%), софокарпин (4.40%), софорамин (3.39%), үр (II) дээжний нийлбэр алкалоидын зонхилох нэгдлийг матрин (42.3%), N-оксиматрин (27.35%), цитизин (6.14%), метилцитизин (4.38%) эзэлж, үрийн хальс дээжний (III) нийлбэр алкалоидын 46.26%-ийг N-оксиматрин, 24.8%-ийг матрин, 9.38%-ийг софорамин, 5.89% -ийг софоридин (5.59%) эзэлж байгааг тодорхойлов. Үрийн хальсны алкалоидын судалгааг бид анх удаа гүйцэтгэж, имидазолын бүлэгт хамаарах N-метоксикарбонилимидазол (12)-ыг таньж тодорхойлсон нь Sophora-ийн төрөлд анх удаа илэрсэн шинэлэг ажил боллоо. Түлхүүр үгс: матрин, N-оксиматрин, хинолизидин, хийн хроматограф-масс спектрометр


1986 ◽  
Vol 32 (2) ◽  
pp. 325-328 ◽  
Author(s):  
V A Soo ◽  
R J Bergert ◽  
D G Deutsch

Abstract We describe a quantitative screen for hypnotic-sedative drugs in which we use capillary gas chromatography with a nitrogen-phosphorus detector (GC/NPD) as the primary method and capillary gas chromatography-mass spectrometry (GC-MS) for confirmation. GC retention times of the acid-extracted underivatized drugs were stable (CVs less than 1%), and the detector response varied linearly over a 20-fold concentration range with a mean correlation coefficient for 11 drugs of 0.989. The limits of detection were satisfactory (0.5 mg/L in a 0.5-mL serum sample and 1-microL injection volume), as were precision (average CV 5.2% within day, 6.4% between day). The complementary use of capillary GC-MS not only unambiguously confirms presumptive peaks identified by GC, but also prevents reports of false positives and identifies compounds not included in the quantitative GC screen that may be listed in the GC-MS library.


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