Odor determining

This conclusion is consistent with the observation that responses in mitral cells to odors applied to the epithelium are narrowly tuned and that sensitivity to particular types of odor, determined by either functional group or carbon chain length, is spatially organized in the bulb [20]. Thus, the organization of receptors into broad zones in the epithelium is further refined in the bulb, where receptors find common targets. 

Chemical sensors are widely used to monitor hazardous and combustible gases [65]. Applications include safety control in industrial applications, surveillance of boilers and other devices which are operated with natural gas as well as more sophisticated areas like cooking control and odor determination [66]. 

Fillion, T. J. and Blass, E. M. (1986) Infantile experience with suckling odors determines adult sexual behavior in male rats. Science 231, 729-731. 

R = CH3, C10H12O4, Mr 196.20, is an odor determining constituent of oakmoss absolute extract and forms colorless crystals mp 145 °C) with a mossy-earthy odor. It is used as a substitute for oakmoss extract in fine fragrances, soap, and cosmetics. 

The enumeration of the components of the individual products has been limited to the main constituents and the odor determining compounds further information is available in the literature, e.g., [214, 225-230a]. Physical data for extracts or concentrates consisting largely of nonvolatile material are not given because the composition of these products varies widely according to the isolation and manufacturing procedure used. 

Benzoe Sumatra resinoid is a dark brown viscous liquid with a warm, powdery, sweet-balsamic odor. Its main volatile, odor-determining components are derivatives of benzoic and cinnamic acids and vanillin [284, 284a],... 

The main constituent of the leaf oil is a-terpinyl acetate, while the main constituent and odor-determining component of the root oil is ligustilide [4431-01-0] (3-butylidene-4,5-dihydrophthalide) [609-612a]. 

Retention index of odorants on the stationary phase used in the chiral analysis (single oven) or on the precolumn (MDGC), and on more than one stationary phase if found to be necessary for the identification of odorants, determined by using a hydrocarbon standard, described above and in unitgu. 

Odor Determine by any suitable method, such as ASTM D 1833. 

The standard measurement procedure for odor determination (VDI, 1994) is called olfactometry. It uses the human olfactory sense (Gostelow et al, 2001) for the determination of odor qualities. The human nose is an extremely sensitive odor detector and is used in subjective and objective sensory measurements. The latter expresses the strength of odor in terms of the number of dilutions of odor-free air required to reduce the sample odor to threshold concentration (Gostelow et al, 2001). The threshold concentration is reached when the human nose can just smell the odorous substance. Because every nose has different sensitivity, the standard test procedure involves four people at the same time. Prior to olfactory... 

CnHig, Mr 150.26, is a colorless liquid with a strong green, galbanum-like odor. It occurs naturally in galbanum oil (see p. 207) and is the odor-determining constituent of the oil. The commercial qualities also contain some all-trans isomer and are offered only in dilution due to better stability. 

In practice, odor determination by means of the olfactometer has been widely applied... 

The principle of odor determination in different fields of application has been discussed in detail by Moy and Collins and Schulz. ... 

The method of odor determination by means of the olfactometer is based on the guidelines Richtlinien VDI3881, pages 1 to and VDI 3882, pages 1 and Measuring nrincinle ... 

Example for odor determination for selected materials Determination of odorant concentration in varnished furniture surfaces... 

Example of odor determination in industrial plants Odor measurement in an industrial varnishing plant... 

The observation that the urine odor of animals is discriminably different from urine odor of a 50 50 mixture of individuals of the respective inbred strains (Yamazaki et al., 1984) is consistent with this view. This metabolic variation hypothesis of H-2 odor determination suggests that several tissues, rather than one, contribute to the H-2 odor phenotype. Except for the intact mouse and urine, no highly potent source of H-2 odors has been identified, probably because the odorants, whatever their source, are concentrated in secretions and excretions. 

Leonardus, G., Kendall, N., and Barnard, N., Odor Determinations of 53 Odorant Chemicals, Journal of the Air Pollution Control Association, 19(2) (February 1969), Air Pollution Control Association, Box 2861, Pittsburgh, PA 15230. 

Products of octanoate, decanoate, and laurate oxidation. J. Biol Chem., 239,1374—1380. Labows, J., Reilly, J., Leyden, J. Preti, G. (1999). Axillary odor determination, formulation, and control, in 59-82. In Laden, K. (ed.) Antiperspirants and Deodorants, 2" Edition Marcel Dekker, New York, NY, USA. 

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