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Absorbance in Medical News

Sunsweet Introduces New Antioxidant Blend, a Delicious Blend of High Antioxidant Fruits

...th vitamins and minerals, Sunsweet's Antioxidant Blend contains four of the highest scoring, oxygen-free radical fighting fruits on the Oxygen Radical absorbance Capacity (ORAC) chart, as measured by the U.S. Department of Agriculture and Brunswick Laboratories. The chart measures the antioxidant units in foods...

New Research Demonstrates that Wild Blueberries May Support Cardiovascular Health

... in health," said Davis. She noted that eating a variety of fruits and vegetables is key, but because USDA research findings using the Oxygen Radical absorbance Capacity (ORAC) measure ranked Wild Blueberries highest in antioxidant capacity per serving, she recommends eating Wild Blueberries every day. The stu...

Simple Steps Toward a Healthy Lifestyle

...asonings. McCormick sources high quality ingredients from far-reaching destinations to bring a world of flavors to consumers. (1) Oxygen Radical absorbance Capacity (ORAC) of Selected Foods - 2007, Nutrient Data Laboratory USDA, November 2007, www.ars.usda.gov/nutrientdata/ORAC . ...

Advanced Analytical Reveals New Platform for Rapid Genotypic Identification of Microorganisms at ASM 2009

...ometry, and the parallel analysis of pharmaceutical compounds, biomolecules, proteins, DNA, RNA and carbohydrates by capillary electrophoresis with UV absorbance or fluorescence detection. For information: http://www.aati-us.com Contact: webinfo@aati-us.com Phone: 515-296-6600 ...

Rice students win NASA national design award

...the spacecraft's waste-disposal system, an immunoassay process that combines the urine with nanoshells and antibodies, and a photometer that reads the absorbance spectra of the combined solution and feeds a PDA running an analysis program personalized for each astronaut. Resulting data can be downloaded to NASA...

MDS Analytical Technologies Announces Validation of Two More Kits for High-Throughput Detection of Melamine in Food

... use on MDS Analytical Technologies' SpectraMax(R) absorbance microplate readers with SoftMax(R) Pro 5 GxP analy...o a sales representative. About SpectraMax(R) absorbance Microplate Readers MDS Analytical Technologie...Pro software, it automatically normalizes the well absorbance to a cuvette equivalent pathlength of one centimet...

Stiefel Laboratories Announces the Expansion of Its REVALESKIN(R) Skin Care Line With Three New Products

... other commonly known natural antioxidants like green tea, pomegranate, vitamin C and vitamin E on the U.S. Department of Agriculture's Oxygen Radical absorbance Capacity (ORAC) scale. About the REVALESKIN (R) Skin Care System The REVALESKIN(R) skin care system is the first and on...

Study Finds Spice-Rich Marinades Can Reduce Harmful Compounds When Grilling

...tural Experiment Station. To view the study abstract visit: http://www3.interscience.wiley.com/journal/120775665/abstract . (2) Oxygen Radical absorbance Capacity (ORAC) of Selected Foods - 2007, Nutrient Data Laboratory USDA, November 2007, http://www.ars.usda.gov/nutrientdata/ORAC . ...

Associates of Cape Cod (ACC) and MDS Analytical Technologies Collaborate to Offer a More Robust LAL Endotoxin Assay Platform

...s Chromogenic LAL Endotoxin assay kits. The partnership was based on ACC's validation of MDS Analytical Technologies' VersaMax(TM) monochromator-based absorbance microplate reader using the SoftMax(R) Pro GxP software compliant environment. ACC offers several chromogenic assays: Pyrochrome(R) and Chromo-LAL f...

Cranberry Power: This American Native Fruit Doesn't Have to be Exotic to be Super

...s: Plant and Wine Polyphenol Antioxidants" held July 29-30, 1999, at the Catholic University, Santiago, Chile, (PUC-PBMEC99). 2) USDA Oxygen Radical absorbance Capacity (ORAC) of Selected Foods - 2007. http://www.ars.usda.gov/Services/docs.htm?docid=15866 . 3) Avorn J., Monane M., Gurwitz JH., Glynn RJ, Ch...
Absorbance in Medical Technology

Wild Blueberries Take Top Spot in New Antioxidant Research Study

...d Blueberries have the highest cellular antioxidant activity of the 25 fruits tested, as well as the highest total phenolic content and oxygen radical absorbance capacity (ORAC). Lead scientist Rui Hai Liu, Ph.D. used the cellular antioxidant activity (CAA) assay -- a new assay developed by the Cornell Universi...

Concord Grape Juice Has No Significant Impact on Body Weight

...erican College of Nutrition, Arlington, Virginia, Oct 2-5, 2008. (ii) U.S. Department of Agriculture - Agricultural Research Service. Oxygen Radical absorbance Capacity (ORAC) of Selected Foods - 2007. http://www.ars.usda.gov/SP2UserFiles/Place/12354500/Data/ORAC/ORAC07.pdf ...

Tight Glycemic Control in the ICU

... cuvette cavity by capillary action and spontaneously mixed with dried reagents on the inner walls. The cuvette is then placed into the analyzer, the absorbance is measured, and the glucose level is displayed in 40 to 240 seconds, depending on concentration. Accurate results are claimed for the whole measurem...

West Nile Virus Screening and Diagnostics Technology Emerges In Step with North American Outbreak

...idase (HRP), and enzyme substrate plus chromogen. absorbance is measured at 450 nm. There are 3 wash steps and...i-human IgG, and enzyme substrate plus chromogen. absorbance is measured at 450 nm. There are 3 wash steps and...r incubation and washing, the substrate is added. absorbance is measured at 450 nm. There are 2 wash steps and...
Absorbance in Medical Products

Bile Reflux Analysis

Description:...oad and analyze data from the Bilitec™ 2000, an ambulatory bile reflux recorder. The primary difference is that bile is detected by means of the absorbance of a certain wavelength of light corresponding to the color of bilirubin contained in the bile. Acid reflux, on the other hand, is measured by means o...
Company:Medtronic Gastroenterology

SpectraMax 190

Description:... senses the depth of the liquid in each microplate well, and normalizes the absorbance value to a 1-cm pathlength. The corrected absorbance is within 5% of the value obtained in a conventional spectrophotometer. ...
Company:Molecular Devices Corporation

KRONUS META-Tg ELISA test kit

Description:...ubation, the wells are washed and read in a standard spectrophotometer (plate reader). The concentration of Tg is directly proportional to the optical absorbance of the sample in question....
Company:KRONUS

DTX 880 Multimode Detector

Description:... and automation needs. Capable of performing fluorescence, luminescence and absorbance measurements on the same instrument, the DTX Series can operate as standalo...and bottom reading), time-resolved fluorescence, fluorescence polarization, absorbance (UV and visible), glow luminescence and temperature control for 6-384-well ...
Company:Beckman Coulter, Inc.

SpectraMax M2 multi-detection microplate reader w/ dual-mode cuvette port

Description:...e reading capability. Detection modalities include absorbance (UV-Vis Abs) and fluorescence intensity (FI) and h...results and reagent savings. In addition, combined absorbance and fluorescence intensity assays can be run by is... software, it can automatically normalize the well absorbance to a cuvette equivalent pathlength of 1 cm simila...
Company:Molecular Devices Corporation

DTX 800 Multimode Detector

Description:... and automation needs. Capable of performing fluorescence, luminescence and absorbance measurements on the same instrument, the DTX Series can operate as standalo...oftware program. The DTX 800 features fluorescence intensity (top reading), absorbance (visible) and glow luminescence for 96- to 384-well plates, as well as line...
Company:Beckman Coulter, Inc.

GENios Plus multi label reader

Description:...late reader for a variety applications that are quantified by Fluorescence, absorbance or Luminescence. The instrument is suitable to handle assays in Microplate... quantification of DNA or protein samples you can select between 260/280 nm absorbance measurements or a fluorescence readout using appropriate fluorescence label...
Company:Tecan

Analyst AD (Non-Stacker Configuration)

Description:...yst AD delivers unparalleled detection performance for Fluorescence Intensity, Fluorescence Polarization, Time-Resolved Fluorescence, luminescence and absorbance assays. A filter-based instrument that holds up to eight excitation and eight emission filters. Capable of operating in the UV and VIS range....
Company:Molecular Devices Corporation

Safire Multi-Detection Monochrometer Microplate Reader

Description:... SAFIRE is the worlds first monochromator-based microplate reader combining optimum performance and exceptional flexibility for absorbance and fluorescence application needs, all in one instrument Features Effortless selection of wavelengths without the use of filters just select ...
Company:Tecan

Genios Multi-Detection Microplate Reader

Description:...late reader for a variety applications that are quantified by Fluorescence, absorbance or Luminescence. The instrument is suitable to handle assays in Microplate... quantification of DNA or protein samples you can select between 260/280 nm absorbance measurements or a fluorescence readout using appropriate fluorescence label...
Company:Tecan
Absorbance in Biological News

Researcher: Lasers used to detect melamine in baby formula

... laser beams reflected off the sample and toward a detector, which calculated how much of the laser's energy was absorbed by the sample and created an absorbance spectrum that was unique to the sample. The same data were collected for pure melamine. When the formula was mixed with melamine and analyzed, the ...

Hydrogen tank lighter than battery

...f the holy grail of hydrogen storage is still some way off. Hydrogenography In his research Gremaud made use of a technique for measuring the absorbance of hydrogen by metals, based on the phenomenon of 'switchable mirrors' discovered at the VU University Amsterdam. About ten years ago researchers at t...

Honeydew honeys are better antioxidants than nectar honeys

... range of physical and chemical tests. Honeys with high antioxidant properties (measured by the DPPH test) also had high total polyphenol content, net absorbance (as colour parameter), pH and electrical conductivity. “These laboratory results show some aspects that people could use to get an idea about whi...
Absorbance in Biological Technology

UV Absorbance Measurements in SpectraMax Microplate Spectrophotometers MaxLine Application Note #32)

Evelyn McGown, Ph.D. Molecular Devices Corporation. 7/99 In 1994, Molecular Devices introduced SPECTRAmax , the first microplate reader equipped with a monochromator, rather than bandpass filters, for wavelength selection. It was also the first microplate reader capable of m...

MIT: New method could lead to narrower chip patterns

...omputer Science, and is reported in a paper published in the April 10 issue of Science . Remarkably, the new technique, which the researchers call absorbance modulation, makes it possible to create lines that are only about one-tenth as wide as the wavelength of light used to create them. Part of the trick ...

SoluLinK Introduces ChromaLink(TM) Biotin Labeling Kit to Biotinylate and Measure With One Reagent

... included as well as a foolproof protocol provided on a flash drive -- Built-in Quantitative Signal: Incorporated biotin quantified by simple absorbance -- no HABA or fluoro-reporter assay needed -- only a simple UV scan needed to measure -- Versatile: Labels 25 micrograms to 1 mg of antibody -- ...

EFFECTS OF INSTRUMENT RESOLUTION ON ASSESSMENT OF DNA PURITY

... pure, double-stranded DNA of 50 g/mL will have an absorbance at 260nm of 1.0 and that the ratio of absorbance at 260 and 280nm of this sample will be greater th...lly defined as the full width at half height of an absorbance band of a reference material that possesses a natu...

XANTHOCHROMIA IN CEREBROSPINAL FLUID

...ate the results. In our worked example, the absolute absorbance of the first band at 445.5nm is 1.800A; the absolute absorbance of the second band at 453.0nm is 0.731A; the ratio H 445...

ANALYSIS OF AMINO ACIDS BY REVERSED PHASE CHROMATOGRAPHY WITH PRECOLUMN DERIVATISATION AND UV/VISIBLE DETECTION

...M NaH2PO4/Na2HPO4 (1:1) buffer pH=7.8 B: AcN/MeOH/H2O (45/45/10 v/v/v) Detection: UV absorbance @ λ=338nm Precolumn reaction and analysis conditions: 5L borate buffer ...

384 Well Pipetting Precision and Accuracy Testing Using the Sciclone Advanced Liquid Handler

...Bulk Reagent Dispenser (Sciclone pipettor option). absorbance was measured at 450nm using a Wallac Victor 2 Mul...uced as the sample volume is increased to keep the absorbance measurement within the linear dynamic range of the...les using a hand pipetter, the wells were read for absorbance reader. Similar procedures were done for the 0.5&#...

Dispensing 0.5μL to "Dry" 384 Plates with the Sciclone ALH

... a Bulk Reagent Dispenser (Caliper Life Sciences). absorbance was measured at 450nm using a Wallac Victor 2 142... and the plate is read for absorbance. The average absorbance reading for these manual standards is used in a si... Data Acquisition and Processing absorbance data is acquired on a Wallac Victor2 reader using ...

Precision Testing for the Sciclone Advanced Liquid Handler Z8 Option

...s delivery of water across the columns of a plate. absorbance was measured at 450nm using a Wallac Victor 2 Mul...enser. Acquire and export absorbance data to Excel TM for CV calculation. ...times. Acquire and export absorbance data to Excel for CV calculation. ...

96 Well Pipetting Precision Testing Using the Sciclone ALH with a 384 Fixed-Cannula Array

...Flat Bottom, Untreated, Polystyrene Assay plates (COSTAR Catalogue # 9837). absorbance was measured at two wavelengths using a SPECTRAmax (Molecular Devices Corpo...ell plate with the low volume head. Precision Results absorbance was measured and the data exported to ExcelTM for CV determination. The res...
Absorbance in Biological Products

Quant-iT RiboGreen RNA Assay Kit from Molecular Probes (Invitrogen)

Description:... Kit is one of the most sensitive detection systems for the quantitation of RNA in solution. The assay is approximately 1000-fold more sensitive than absorbance measurements. As little as 1 ng/mL can be detected with fluorescence microplate readers and fluorometers using standard fluorescein filter sets....
Company:Molecular Probes (Invitrogen)

Infinite F200 from Tecan

Description:... The Infinite 200 series of microplate readers combines reagent dispensing with fluorescence, luminescence or absorbance detection in an affordable, easy-to-use platform for the complete range of life science applications. The unique modular design and adaptability of th...
Company:Tecan

MEGA-9, ULTROL® Grade from Calbiochem

Description:...-soluble detergent with nondenaturing properties. Can be readily removed by dialysis. Useful reagent for membrane research. Purity: ≥98% by HPLC. absorbance (10%, H 2 O, 260 nm): 2 O. CMC 19 - 25 mM. CAS 85261-19-4, M.W. 335.5. ...
Company:Calbiochem

Infinite M200 from Tecan

Description:... The Infinite 200 series of microplate readers combines reagent dispensing with fluorescence, luminescence or absorbance detection in an affordable, easy-to-use platform for the complete range of life science applications. The unique modular design and adaptability of th...
Company:Tecan

Safire 2 from Tecan

Description:...intensity measurements, fluorescence polarization studies and multi-channel absorbance and luminescence measurements. Safire is easily combined with a stacker mod...-Scanning Adjustable bandwidth Fluorescence polarization Multichannel absorbance Multichannel luminescence 1536-well plate capability Fast wavelength ...
Company:Tecan

Reacti-Bind 96-Well Plates Corner Notch from Pierce Biotechnology, Inc.

Description:...gregation assay. Low IgM concentrations yield high absorbance values, while high IgM concentrations result in lower absorbance values. The decrease is proportional to IgM concen... Coefficient of variation: Detection requires absorbance measurements at 340 nm or 405 nm Adaptable to h...
Company:Pierce Biotechnology, Inc.

DTX 800 Multimode Detector from Beckman Coulter

Description:... and automation needs. Capable of performing fluorescence, luminescence and absorbance measurements on the same instrument, the DTX Series can operate as standalo...oftware program. The DTX 800 features fluorescence intensity (top reading), absorbance (visible) and glow luminescence for 96- to 384-well plates, as well as line...
Company:Beckman Coulter

Human Cathepsin D from Calbiochem

Description:...me that will digest acid-denatured hemoglobin in 60 minutes, at 37°C, pH 3.3, releasing peptides soluble in 10% TCA, as measured by an increase in absorbance of 1.0 at 280 nm Purity: ≥90% by SDS-PAGE. Soluble in sterile H 2 O or Aqueous Buffers. Prepared from tissue of individuals that have been show...
Company:Calbiochem

ATTO-TAG CBQCA Amine-Derivatization Kit from Molecular Probes (Invitrogen)

Description:...nd forensic applications, including drug analysis. The ATTO-TAG reagents can, of course, be used in HPLC and other modes of chromatography with either absorbance or fluorescence detection. The principal limitation to obtaining ultrasensitive detection using chemical derivatization reagents, including the ATTO-T...
Company:Molecular Probes (Invitrogen)

ATTO-TAG CBQCA derivatization reagent (CBQCA; 3-(4-carboxybenzoyl)quinoline-2-carboxaldehyde) from Molecular Probes (Invitrogen)

Description:...nd forensic applications, including drug analysis. The ATTO-TAG reagents can, of course, be used in HPLC and other modes of chromatography with either absorbance or fluorescence detection. The principal limitation to obtaining ultrasensitive detection using chemical derivatization reagents, including the ATTO-T...
Company:Molecular Probes (Invitrogen)
Absorbance in Biological Definition

Chlorophyll

...ious algae Some red algae Common structure of chlorophyll a , b and d Evidence for chlorophyll absorbance spectra of by chlorophyll a ( green ) and b ( red ) Chlorophyll can be shown to be vital for photosynthesis by destarching a leaf from a vari...

Peptide bond

...cess is facilitated by enzymes . Living organisms also employ enzymes to form peptide bonds; this process requires free energy. The wavelength of absorbance for a peptide bond is 220-280nm. ...
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