Navigation Links
Simultaneous Determination of Residues of Approximately 100 Pesticides ,,, and Metabolites in Fruit and Vegetables by LC/MS/MS

injection was 15 min.

ESI versus APCI

Using the optimized MRM transitions and identical sample amounts only 8 pesticides (propoxur, carbofuran, bendiocarb, carbaryl, tebuconazole, amidosulfuron, atrazine, and promecarb) out of 74 tested gave higher signal intensities with APCI+ under the conditions applied. The other 66 gave a better response with ESI+. Therefore, the TurboIonSpray source was used here.

Number of simultaneously detectable MRM transitions

As demonstrated in Figure 3, a dwell time reduction down to 25 ms is accompanied with only a minor reduction in signal intensity. The signal to noise ratio decreases in the worst two cases to about 40% of the 100 ms value. However, this still compares to a sufficient S/N ratio. Consequently,

with 25 ms dwell time and a pause between mass ranges of 5 ms within the cycle time of 3 seconds the simultaneous measurement of 100 MRM transitions. The signal to noise ratio decreases in the worst two cases to about 40% of the 100 ms value. However, this still compares to a sufficient S/N ratio. Consequently, with 25 ms dwell time and a pause between mass ranges of 5 ms within the cycle time of 3 seconds the simultaneous measurement of 100 MRM transitions is possible. In cases, where one deals with sufficiently high concentrations, even measurements with a minimum dwell time of 10 ms should be possible, allowing the simultaneous detection of about 200 MRM transitions using an LC/MS/MS system with a LINAC collision cell. However, the parallel measurement of positive and negative ions in one run should be avoided because of the necessary stabilization of the changed polarity
'"/>

Source:


Page: All 1 2 3 4 5 6

Related biology technology :

1. Simultaneous Detection of 8 Cytokines in Mouse or Human Sera
2. Simultaneously characterizing and quantifying chloramphenicol and its metabolite using LC/MS/MS
3. Simultaneous Screening of 23 Drugs of Abuse in Oral Fluid Using an LC/MS/MS Method
4. Simultaneous Detection of CYP3A4, CYP2D6 and CYP2C9 Metabolites with a Single, Sensitive, LC/MS/MS Method
5. Structural Determination of Flavonoids Using MSn
6. Total Cellular Protein Determination Using the DC Protein Assay
7. Determination of Polar Organophosphorus Pesticides in Aqueous Samples by Direct Injection Using HPLC/MS/MS
8. Determination of N-nitrosamines in Baby Bottle Rubber Teats by Liquid Chromatography-Atmospheric Pressure Chemical Ionization Mass Spectrometry
9. Determination of the Chloramphenicol residues in milk and milk products using LC/MS/MS
10. A Microtiter-based Assay for the Determination of ID50s of b-lactamase Inhibitors Employing Reporter Substrates Detected at UV or Visible Wavelengths (MaxLine Application Note #20)
11. Determination of Acepromazine and its Major Metabolite in Equine Serum by LC-MS/MS using the Finnigan LCQ Deca XP Plus Ion Trap Mass Spectrometer
Post Your Comments:
(Date:7/31/2015)... ... 31, 2015 , ... R-Biopharm is proud to announce the ... in foods, has been accepted by AOAC International as Official First Action method. ... Cereal-Based Products by R5 Competitive ELISA,” based on a specific monoclonal antibody to ...
(Date:7/30/2015)... ATLANTA , July 30, 2015 ... leaders to the 2015 AACC Annual Meeting & ... from July 26–30. The meeting showcased revolutionary ... improves the ability of healthcare providers to diagnose ... get effective medical treatment. As ...
(Date:7/30/2015)... ... July 30, 2015 , ... ... Vieillard as Sales & Marketing Director. , With more than 25 years ... responsible for reinforcing Tronics’ business development activities worldwide. He brings to the company ...
(Date:7/30/2015)... Washington , July 30, 2015 ... Market, by Product (Software, Molecular Modeling, PB/PK, PKPD, Trial ... Discovery & Development, Preclinical, Clinical Trial), by End Users ... Biosimulation Market is expected to reach USD 2,107.99 million ... a CAGR of 15.29%. Browse more ...
Breaking Biology Technology:RIDASCREEN® Competitve Gliadin Receives AOAC Official First Action Status 2Innovative Research on Cancer, Heart Disease, and Infectious Diseases Draws More than 17,500 Attendees to 2015 AACC Annual Meeting 2Innovative Research on Cancer, Heart Disease, and Infectious Diseases Draws More than 17,500 Attendees to 2015 AACC Annual Meeting 3Innovative Research on Cancer, Heart Disease, and Infectious Diseases Draws More than 17,500 Attendees to 2015 AACC Annual Meeting 4Tronics appoints Francois Vieillard as Sales and Marketing Director 2Biosimulation Market Worth 2,107.99 Million USD by 2020 2Biosimulation Market Worth 2,107.99 Million USD by 2020 3Biosimulation Market Worth 2,107.99 Million USD by 2020 4
... Capital Growth and Research held their conference at Grainger Hall. ... way to attract venture capital to Wisconsin, according to the ... conference on Friday at UW-Madisons Grainger Hall. , ,We believe ... John Neis , a senior partner at Venture ...
... are entering into a major war. We must take ... we have already entered a new front line where ... this brand-new mega-search-engine-driven e-commerce marketplace. , ,E-commerce is causing ... the front lines know exactly who is winning and ...
... Communications , a Minnesota firm that makes networking products ... InfiniBand market. InfiniBand, a type of low-latency network, is ... it an edge over Ethernet. , ,For Small Tree, ... Apple market, the product represents a new direction. , ...
Cached Biology Technology:Wisconsin investors seek regional partners and informed legislature 2Wisconsin investors seek regional partners and informed legislature 3Global branding is now a war 2Global branding is now a war 3Global branding is now a war 4Small Tree brings InfiniBand to Apple Xserve G5 clusters 2Small Tree brings InfiniBand to Apple Xserve G5 clusters 3
(Date:7/31/2015)... 2015 La 10e Conférence internationale sur ... par le BGI du 22 au 25 octobre ... Chine. La conférence célèbre son 10e ... l,ICG est devenue l,une des réunions annuelles mondiales ... et c,est aussi la plus dynamique, la plus ...
(Date:7/31/2015)... China , 31. Juli 2015 Die 10. ... wird von BGI veranstaltet und findet vom 22. ... China , statt. Die ... Seit ihrem Start 2006 ist die ICG weltweit ... „omik" geworden. Sie ist eines der dynamischsten, enthusiastischsten ...
(Date:7/31/2015)... July 31, 2015 The 10 th International ... by BGI from October 22-25, 2015, in Shenzhen ... conference is celebrating its 10 th anniversary this year. Since ... world,s most influential annual meetings in the ,omics, fields, and ... gatherings. ICG-10 focuses on recent breakthroughs and ...
Breaking Biology News(10 mins):La 10e International Conference on Genomics (ICG-10) doit s'ouvrir en octobre 2La 10e International Conference on Genomics (ICG-10) doit s'ouvrir en octobre 3Die 10. internationale Konferenz zu Genomik (ICG-10) beginnt im Oktober 2Die 10. internationale Konferenz zu Genomik (ICG-10) beginnt im Oktober 3The 10th International Conference on Genomics (ICG-10) to Open in October 2
... CITY, Calif., May 22, 2012   DigitalPersona, Inc. ... access management solutions, today announced CDS Monarch has ... U.are.U® Fingerprint Keyboards to provide secure ... CDS Monarch is now able to more accurately ...
... D(ABMM), Professor Emerita, Stanford University School of Medicine, Stanford, ... Distinguished Service Award for her years of volunteer service to ... career in clinical microbiology, Baron has been the heart and ... Director of Research and Development, North America, for bioMrieux, Inc., ...
... is available in German . , Castor oil ... used in ancient times with pregnant women to induce labour. Only ... Lung Research succeeded in unravelling the mysteries of the action mechanism. ... the intestine and uterus is apparently responsible. This is activated by ...
Cached Biology News:CDS Monarch Deploys DigitalPersona Strong Authentication Solutions for Secure Access to Electronic Medical Records 2CDS Monarch Deploys DigitalPersona Strong Authentication Solutions for Secure Access to Electronic Medical Records 3The American Society for Microbiology honors Ellen Jo Baron 2The American Society for Microbiology honors Ellen Jo Baron 3G protein-coupled receptor mediates the action of castor oil 2G protein-coupled receptor mediates the action of castor oil 3
Gloves are 9.25 long, latex, powder free, smooth and ambidextrous....
Request Info...
... Immunogen KLH-conjugated, ... acids 47-66 (PAEV-GPGAVGERTPRKKEPP) of human ... 1 (BHC110/LSD1). Quality Assurance ... Stability 2 ...
...
Biology Products: