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Author: Volatile

  • ACS event at Hudson Alpha Chemistry of Odor Volatile Analysis

    The Chemistry of Odor/Aroma October 29th

    Posted on October 19, 2015 by Volatile
    Posted in ALL, Analytical, Apparel, Auto, Beverage, Chemicals, Cleaning, Cosmetics, Electronics, Environmental, Events, Food, Industrial, Medical Devices, Paints, Paper, Pharma, Plastics, Polymers, R&D, Rubber, Sensory, Toys
  • What is Off-Odor?

    Posted on October 5, 2015October 5, 2015 by Volatile

    What is off-odor?  The true answer is you’ll know it when you smell it!  Doesn’t have to stink like dead fish or 2 week old ground beef left in the refrigerator, although those certainly are obnoxious.  Off-odor can be a nice fresh floral smell, like that of a rose, only the rose aroma originates from […]

    Posted in Adhesives, ALL, Analytical, Apparel, Auto, Beverage, Blog, Chemicals, Cleaning, Cosmetics, Electronics, Environmental, Food, Industrial, Medical Devices, Paints, Paper, Pharma, Plastics, Polymers, Rubber, Sensory, Statistics, Toys
  • Quality Analysis of Printed Circuit Boards

    Posted on August 31, 2015 by Volatile

    Printed circuit boards (PCBs) and 1206 sized components were placed in a hot chamber at 255 oC for 2.5 minutes and off-gassing chemicals were trapped by Tenax molecular sieve/ cyrotrap with liquid nitrogen. Chemical identities were determined by gas chromatography/ mass spectrometry. The most striking difference between printed circuit boards (PCBs) was due to a […]

    Posted in ALL, Analytical, Case Studies, Electronics
  • Measurement of Organic Impurities in Water

    Posted on August 31, 2015 by Volatile

    Approximately 10g of liquid sample (sample A, B, C, D, E, F, G, H, I and J) were placed in 40mL clear vials and limonene was extracted using SBSE, or Twister, at room temperature for 90min. Twisters were heated to 280oC for 3 minutes inside a thermal desorption unit (TDU). The TDU transfer temp was […]

    Posted in ALL, Analytical, Beverage, Case Studies, Chemicals, Environmental
  • Measurement of volatiles from Applied Skin Lotions

    Posted on August 31, 2015 by Volatile

    The objective for this project was to determine what compounds were uniquely generated from skin treated with lotion. Samples (conditioned Twister bars exposed to skin headspace) were received from Unilever and stored under refrigeration until analyzed by a GC-MSD equipped with Gerstel components including: MPS2, TDU, CIS, and MACH. Twister bars were placed into TDU […]

    Posted in ALL, Analytical, Case Studies, Cosmetics
  • Quality Analysis of Plastics

    Posted on August 31, 2015 by Volatile

    Thirteen samples were analyzed in triplicate by placing approximately 23 mg of shaved PET pellet into a Gerstel microvial that was placed into a TDU tube and heated to 280oC for 5 minutes inside a thermal desorption unit (TDU). The TDU transfer temp was 300oC and operated in splitless mode. Volatiles generated during the melting […]

    Posted in ALL, Analytical, Case Studies, Plastics
  • Identification of Off-Odors in Corrugated

    Posted on August 31, 2015 by Volatile

    Organoleptic assessment revealed overall aroma intensity of the suspect corrugated was similar in character, but stronger than normal. Upon headspace volatile extraction with a proprietary device equipped with thermal desorption tubes, and analysis by GC-MS/O, and GC-MS, it was determined there were 3 furan species extracted from suspect corrugated sample headspace only. Furans are indicative […]

    Posted in ALL, Analytical, Case Studies, Food, Paper
  • Carbonated beverage sulfur off-odor

    Posted on August 31, 2015 by Volatile

    A sulfur off-odor was reported in specific lots of diet cola. The client was unable to successfully identify the chemical nature of the odorant and samples were sent to VAC for further analysis. Upon receipt at the VAC lab, sulfur odor was noticeable upon simple organoleptic analysis of the diet cola. A series of extraction […]

    Posted in ALL, Analytical, Beverage, Case Studies, Sensory
  • Volatiles from different varieties of watermelon

    Posted on August 31, 2015 by Volatile

    Volatile and semi-volatile compounds were extracted by stir bar sorptive extraction from watermelon puree and headspace obtained from 4 different varieties. Analysis was conducted by gas chromatography mass spectrometry. More than 36 compounds were detected. 10 were positively identified with authentic standard confirmation. The compound present in greatest abundance varied according to variety.

    Posted in ALL, Analytical, Case Studies, Food
  • Odorous Compounds from Sweet Potatoes

    Posted on August 31, 2015 by Volatile

    A method was developed and tested to identify and measure volatile components generated from sweet-potato bread as it baked for the purpose of determining if hazardous chemicals identified by the National Space and Aeronautical Agency (NASA)’s maximum allowable concentrations list (SMACs) were present. A 14.5kL enclosed chamber made of polyethylene and polyvinylchloride was constructed to […]

    Posted in ALL, Analytical, Case Studies, Food, R&D, Sensory

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What is Off-Odor?

by Volatile on October 5, 2015
What is off-odor?  The true answer is you’ll know it when you smell it!  Doesn’t have to stink like dead fish or 2 week old ground beef left in the refrigerator, although those certainly are obnoxious.  Off-odor can be a nice fresh floral smell, like that of a rose,...

Statistics of Sensory Assessment: Cohen’s Kappa

by Volatile on August 3, 2015
Statistics of Sensory Using people as diagnostic sensors produces more variation than instrumental methods. There are situations where the benefits of human-based measures outweigh their inconsistency. This is particularly true for aromas and flavors. Choosing, training and aligning panelists is a big investment. If sensory activities are key to your business success,...

Bottled Water Odor

by Volatile on August 3, 2015
Bottled Water Odor Bottled drinking water sales topped $12 billion in the United States recently, with steady growth of 6% per year. Consumers view bottled water as a healthy alternative to other drinks. Recent news articles place bottled water’s reputation for consistent quality at risk. A top contributor to unhappiness for...
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  • Services
    • Analytical Testing Laboratory
      • Aroma Profile Support
      • Odor Analysis GC-MS/O
      • Gas Chromatography Mass Spectrometry GC-MS
      • Quantitative Chemical Analysis
      • Selected Ion Monitoring Analysis
      • Known Chemical Threshold Detection
      • Chemical Profiles
      • Odor Baseline Establishment
      • Competitor Product Comparison Testing
      • Microbiology Correlation with Chemical Quantification
      • Back
    • Odor and Aroma Consulting
      • Odor Investigation
      • Odor Strategy Development
      • Analytical Method Development
      • New Product Development Aroma Support
      • Odor Complaint Mitigation
      • Back
    • Sensory
      • Product Lexicon Creation
      • Sensory Panel Development and Support
      • Global Multi-Cultural Sensory Program Development
      • Back
    • Litigation Support
      • Expert Witness Support
      • Odor Claim Support
      • Nuisance Laws Support and Testing
      • Product Formulation Infringement Support
      • Evaluative Scientific Reports Supporting Legal Action
      • Back
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      • GC-MS/O Training
      • Sensory Panel Training
      • GC-MS-MS (Triple Quad) Training
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