Plastics, micro- and nanoplastics pollution in oceans, lakes and other water sources is a well-documented issue. Uptake of these particles by shellfish and fish is one avenue for the pollutants to enter the food chain and cause possible adverse effects. Microand nanoplastics are commonly used in commercially available products as abrasives. They end up in…
In this study, the GERSTEL PYRO was used for the pyrolysis of various materials that are relevant to forensic analysis applications, including paints, adhesives, and cosmetics. A GERSTEL MultiPurpose Sampler (MPS) was used in combination with GERSTEL PYRO and GERSTEL Cooled Injection System (CIS 4), enabling effi cient automation of the thermal extraction and pyrolysis…
Acrylates and methacrylates are two important classes of polymers used in a wide variety of products. Acrylates are polymers made from a family of monomers, which have a vinyl group attached to the carbonyl carbon of an ester group. Methacrylates have a methyl group attached to the alpha carbon. Acrylates are used in the manufacture…
Nylon is an important class of synthetic polymers used in a variety of products. Nylon polymers are aliphatic polyamides that are classified in two groups according to their composition. These are the Ω-aminocarboxylic acid-type and the diamine-dicarboxylic acid-type. The Ω-aminocarboxylic acid-types consist of a single amine group attached to a carbonyl group. The diamine-dicarboxylic acid-types…
Poly (3,4-ethylene dioxythiophene) (PEDOT) is an electrically conductive polymer that shows various promising applications in flexible electronics. However, previous studies have mostly focused on enhancing the conductivity, while ignoring the design and development of porous PEDOT materials. Herein, we report a novel and sustainable strategy of utilizing a deep eutectic solvent of ferric chloride hexahydrate/acetamide…
A high-performance flexible conductive substrate is one of the key components for developing promising wearable devices. Concerning this, a sustainable, flexible, transparent, and conductive cellulose/ZnO/AZO (CZA) film was developed in this study. The cellulose was used as the transparent substrate. The added AZO was as the conductive layer and ZnO functioned as an interface buffer…
Flexible titanium carbide (Ti3C2) antenna offers a breakthrough in the penetration of information communications for the spread of Internet of Things (IoT) applications. Current configurations are constrained to multi-layer complicated designs due to the limited conformal integration of the dielectric substrate and additive-free Ti3C2 inks. Here, we report the flexible ultrawideband Ti3C2 monopole antenna by…
Poloxamers are synthetic block copolymers composed of a central hydrophobic oxypropylene chain connecting two hydrophilic oxyethylene ends. An attractive variety of valuable applications in fields such as drug delivery and cosmetics have been found, taking advantage of their amphiphilic and surfactant properties. The quantification of the oxyethylene content is of great interest. A poloxamer’s ability…
Want to prove the origin and quality of your olive oil? Then look no further. The Fourier 80 from Bruker is the latest analytical tool adapted especially for the olive oil industry. So, if you are an olive oil bottler with or without control of the milling process, you can now verify the quality of…
Lubricants (lubricating oils and greases) are an essential part of mechanical processes, in which friction and heating occur. Lubricants, i.e. oils with additives, prevent damage to bearing components thus maximizing life time. Lubricants age due to multiple stress factors, and require replacement from time to time. Complementing established analytics, NMR with its various facets is…
For most NMR applications, higher external magnetic field strengths are preferred for better dispersion and sensitivity, but are usually outside the budgets of educational labs. The good news is the Fourier 80 can do the job with a little help from auxiliary agents and Bruker’s step-by-step protocols designed for students. Download PDF
The process of using NMR for molecular structure identification and verification can be applied to many real-world examples to enhance a student‘s learning experience. In these protocols, students are given the chance to apply NMR technology to evaluate samples many of them are probably very familiar with; coffee and milk. Download PDF
In the refining process for edible oils conditions must be carefully controlled to avoid the formation of toxic process contaminants, such as 2-MCPD, 3-MCPD, glycidol and their fatty acid esters. An automated GC/MS-method now enables highly efficient determination of these compounds based on standard methods such as ISO 18363-1, AOCS Cd 29c-13, and DGF C-VI…
Mineral oil hydrocarbon (MOH) contaminants can be found in foods such as cereals, baked goods, fats and oils, coffee and many more. MOH can be introduced through process aids, additives, and machine- and lubricating oils used during food processing. Packaging such as jute bags used to store and transport foods, recycled cardboard, and printing inks…
The objective of this note focuses on the fully automated solution of the determination of 3-monochloropropanediol (3-MCPD) and glycidol in edible oils based on the AOCS Cd 29a-13 methods. This method is also applicable for the determination of 2-monocloropropanediol (2-MCPD). The glycidyl esters first react with acidified sodium bromide to form its 3-monobromopropanediol (3-MBPD) ester…
Rancidity of vegetable oils is a major problem in food related industries. It occurs during storage and is caused by oxidation of unsaturated fatty acids, resulting in foul odors and tastes in the product. Oxidative stability is affected by a number of factors including oxygen, temperature, presence of metals and light. The resistance of edible…
The time domain nuclear magnetic resonance (TD-NMR) measurement of Solid Fat Content (SFC) in fats and fat compositions using the Direct and Indirect method are well established official standard methods (ISO, AOCS, IUPAC). While the measurement takes just 6 seconds ,the sample preparation (including melting the fat or fat mixture, filling the sample tube, tempering…
Bruker’s versatile and easy-to-use bench-top TD-NMR analyzer is a turn-key solution for rapid Quality/Process control in snack food manufacturing. It acquires time-domain data in a mater of seconds to quantitatively determine physical and chemical properties of materials. The signal is obtained from the hydrogen atomic nuclei present the samples. The relaxation behaviors of the NMR…