GERSTEL Solutions worldwide No. 18
Stirred, not shaken

In this issue:

Cooling options

Chilled out
To maximize performance, a cooling system that matches the application is needed. The available cooling options and where they best fit are described below.


Watered down taste
Extreme weather with alternating periods of drought and heavy rainfall can negatively affect yield and quality of agricultural crops.

Forensic Dating Services

Gunshot Residue Dating
To determine if and when a handgun has been fired, forensic scientists are searching for and analyzing Gunshot Residue (GSR) deposits. An extraction technique based on Headspace Sorptive Extraction (HSSE) has now been shown to extract additional information from spent cartridges.

Food Safety

Herbal warfare
Plant based food and feed can contain toxic pyrrolizidine alkaloids (PAs) due to coharvesting of weeds that contain PAs. Experts recommend testing crops known to co-exist with PA containing weeds before use.


Analytical mass movement
Metabolomics studies generally require efficient, fully automated sample preparation and the right autosampler.

Water Analysis

Stirred, not shaken
A highly sensitive method for quantitative determination of around 100 contaminants in surface waters with and without sediment has been developed. SBSE is the method of choice for analyte concentration, providing simple, yet powerful, water analysis based on the EU Water Framework.

Presenting the Lab

Always one step ahead
GERSTEL Solutions Worldwide magazine visited the Ecology Services Laboratories of DowDuPont at the Chemistry Park Stade in Germany. The lab is responsible for water and environmental analysis at the site and we had a look around.

Food Safety Analysis

Refined Risk
An automated GC/MS-method enables highly efficient determination of 2-MCPD, 3-MCPD, Glycidol and their fatty acid esters based on standard methods.

Environmental Analysis

Lingering Poison
Sampling procedures and sample handling are key factors in generating valid analytical results, as illustrated in the characterization of concentration profiles of DDT-related compounds in marine pore water.

Product News

TD 3.5+
Steely and 20 percent more capacity
Hot in the vial: Pyrolysis for HPLC and more
DHS large 3,5+
Automated micro-scale chamber
Sequence by barcode
Type it all in? No, just load up the samples
Shake it up
Rugged Automation
Mixture Maker
Benchtop Mixture Maker for Flavorists