Lynch method

For frequencies from 50Hz-lMHz the air substitution (Lynch method) or liquid immersion methods are generally used. BS 7663 gives details for air substitution and both two and one fluid immersion methods. ASTM D153149 specifies the same single immersion method as Method C of BS 7663. 

BS7663 [15] BS4542 [16] 50HZ-1 MHz A. "Lynch method" B. Liquid immersion C. As ASTM DI53I... 

This is a development of the Lynch method [16] in which it is not necessary to measure accurately the value of any capacitance. The specimen is inserted between electrodes that do not make any direct contact with it. The spacing between the electrodes can be adjusted and measured by a micrometer. It is necessary that the thickness of the test specimen be known with appropriate accuracy. 

BS 4542. Method for determination of loss tangent and permittivity of electrical insulation in sheet form (Lynch method). This method has been incorporated into BS 7663. 

RUKMINI c, REDDY SASTRY c, MCPEAKP, LYNCH I (2000) Method for treating hypercholesterolemia, hyperlipidemia, and atherosclerosis. US Patent 6,126,943. 

P.J. Schoenmakers, A. Peeters and R.J. Lynch, Optimization of chromatographic methods by a combination of optimization software and expert systems. J. Chromatogr., 506 (1990) 169-184. 

Lynch et al. [21] have described a method for the determination of organic carbon in silty lake sediments. In this method the air-dried and sifted (-250 mesh) sample is leached with 4M nitric acid-0.1M hydrochloric acid for 1.5h at 90-95°C, and the extinction of the cooled, clean solution is measured at 500nm. The extinction correlates well with weight loss (%) on heating the sample between 120 and 800°C. The precision is 26%. The same leach solution can be used for trace-metal determinations. 

Hammond, T.G., Carlsson, L., Davis, A. S., Lynch, W.G., MacKenzie, I., Redfern, W.S., Sullivan, A.T. and Camm, A.J. (2001) Methods of collecting and evaluating non-clinical cardiac electrophysiology data in the pharmaceutical industry results of an international survey. Cardiovascular Research, 49, 741-750. 

Chloro-2-(chloromethyl)propene was prepared according to the method of Lynch and Dailey.4 Percent purity was determined by GLC, and 0.400 mol of starting material was calculated accordingly. A typical experiment used ca. 54 g of alkene that was 92-93% pure by GLC... 

Penney and Lynch (P2, Method No. 1) and Hewitt (H10, Method No. 1) collected aerosol in a fibrous filter. They measured the current flow to ground from this filter during the deposition and the total mass of aerosol collected during the run. 

Penney and Lynch (P2, Method No. 2) passed an aerosol between two parallel plates with an adjustable potential across them. The collection efficiency achieved is a measure of the average electrostatic mobility of the particles. 

Bordwell (Bordwell and Bausch, 1986) has developed a method to determine C—H BDEs from a combination of p ha values and oxidation potentials (E ) of the corresponding anions in dimethyl sulphoxide solution. These acidity-oxidation potentials (AOP) are taken as measures for BDEs and are related to the stabilization of the radicals formed. This procedure has been recently applied to the subject of captodative stabilization (Bord-well and Lynch, 1989). Values of ABZ) relative to the C—H BDE in methane are calculated according to (13). These values are set equal to the... 

Because the amplitude of a NMR signal Is proportional to the amount of hydrogen present. In the data analyses described below maceral contents which are determined on a volume basis (denoted by vol%) have been converted to a wt% hydrogen basis (denoted by H-wt%) by the method of Lynch et al. (27). In practice, the changes produced In the maceral content values are small except for the coals richest In llptlnlte. 

In 1990, Lewis et al. published a new approach introducing flexibility such that both new information and expert judgment could be readily incorporated. The Lewis-Lynch-Nikiforov (LLN) method, and its rehnements, are extensions of established principles and procedures, and... 

Lynch, T.J. Brzeska, H. Baines, I.C. Korn, E.D. Purification of myosin I and myosin I heavy chain kinase from Acanthamoeba castellanii. Methods Enzymol., 196, 12-23 (1991)... 

Lynch, R.W., Dosch, R.G., Kenna, B.T., Johnstone, J.K., and Nowak, E.J., "The Sandia Solidification Process - A Broad Range Aqueous Waste Solidification Method," Proc. IAEA Symposium on the Management of Radioactive Wastes," IAEA - SM 207/155 Vienna, Austria, March 22-26 (1976). 

DuPont Dow Elastomers (1998) Letter from M.A. Lynch to T. Junghans. 13 January 1998 Eller, P.M., ed. (1994) NIOSH Manual of Analytical Methods (DHHS (NIOSH) Publ. No. 94-113),... 

Jarvis, M.F., Lynch, K.J., Burgard, E.C., Vanbiesen, T., Kowaluk, E.A., (Abbot Laboratories) The P2X3 receptor, methods of altering P2X3 receptor activity and the use thereof, W00063379 (2000). 

PH Gamache, IN Acworth, ML Lynch, WR Matson. Coulometric array detection for HPLC in the analysis of juice products. In S Nagy, RL Wade, eds. Methods to Detect Adulteration of Fruit Juice Beverages. Auburndale, FL Agscience, 1995, pp 120-144. 

The MSI is used as a diagnostic criterion of replication errors caused by various mutations in at least five mismatch repair genes (Lynch and Smyrk, 1996). Therefore, MSI analysis is useful in clinical practice to identify patients with hereditary nonpolyposis colorectal cancer. Raedle et al. (1999) have presented a rapid DNA extraction method (rapid microsatellite analysis) for analyzing replication errors in paraffin-embedded tissues. 

Electron spin resonance was first applied to coal during the 1950s (Ingram et al., 1954 Uebersfeld et al., 1954) as a method for the determination of free-radical species in coal. Since that time, electron spin resonance has been used to compare the data for coals of different rank and to explore the potential for relating the data to the various carbon systems as well as offering valuable information about aromaticity (Toyoda et al., 1966 Retcofsky et al., 1968, 1978 Petrakis and Grandy, 1978 Kwan and Yen, 1979 Khan et al., 1988 Thomann et al., 1988 Nickel-Pepin-Donat and Rassat, 1990 Bowman, 1993 Sanada and Lynch, 1993). 

The PMN review process has evolved over time within the constraints set by TSCA. An important constraint is that submitters are required to furnish only test data already in their possession (if any) and are not required to conduct a battery of tests as a precondition for approval. This generalization holds true for basic chemical property data as well as toxicity data, and it is the main reason why TSCA has been such a powerful impetus for developing estimation methods for many of the parameters needed in environmental assessment. To illustrate how extreme the situation is, in one study of more than 8,000 PMNs for class 1 chemical substances (i.e., those for which a specific chemical structure can be drawn) that were received from 1979 through 1990,Lynch et al. (1991) found only 300 that contained any of the property data noted earlier as needed for environmental assessment. The U.S. is unique among industrialized nations in requiring its assessors to work in the virtual absence of test data. 

Lynch, D.G., N.F. Tirado, R.S. Boethling, G.R. Huse, and G.C. Thom. 1991. Performance of on-line chemical property estimation methods with TSCA Premanufacture Notice chemicals. Ecotoxicol. Environ. Saf. 22, 240-249. 

Buck Louis GM, Dukic V, Heagerty P, Louis TA, Lynch CD, Ryan LM, Schisterman EF, Trumble A, Pregnancy Modeling Working Group (2006) Analysis of repeated pregnancy outcomes. Stat Methods Med Res, 15(2) 103-126. 

Much of the work to date in estuaries and adjacent marsh/shelf environments using 210Pb has been to determine sediment accumulation and accretion rates (Armentano and Woodwell, 1975 Krishnaswami et al., 1980 Church et al., 1981 Kuehl et al., 1982 Olsen et al., 1985 Paez-Osuna and Mandelli, 1985 McKee et al., 1986 Lynch et al., 1989 Bricker-Urso, 1989 Moore, 1992 Smoak et al., 1996 Dellapenna et al., 1998, 2001 Benoit, 2001 Corbett et al., 2003). Lead-210 is considered to be a reliable method for dating sediments deposited over the last 100 to 110 y (Krishnaswami et al., 1971). In the absence of bioturbation/mixing the activity gradient of excess 210Pb in sediments, which is the net result of accumulation and radioactive decay, can provide information on the sedimentation rate of recent sediments. Unfortunately, in many... 

S. Lynch, D. Littlejohn, Development of a slurry atomization method for the determination od cadmium in food samples by eletrothermal atomization atomic absorption spectrometry, Talanta, 37 (1990), 825-830. 

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