由于复杂样品中不同的化学性质 和大量的分析物，食品和饲料分 析是一项极具挑战性的任务。食 品安全分析遵循严格的政府规 定，以控制全球最大残留限量。
PAL System作为的行业标准前端，为 GCMS 和LCMS 前端提供经过验证的自 动化样品制备解决方案。食品和饲料分 析的PAL工作流程遵循国际公布的标准 方法，通常使用微量法进行更安全的绿 色分析化学。
在一长串受监测的污染物中，使用的农 药QuECHERS提取和微型SPE(uSPE）对 各种食品进行净化。此外，自动化uSPE 净化用于分析兽药、抗生素和激素的残 留。在PAL System上可实现在线SPE技术 分析草甘膦和AMPA等高极性农药。
PAL System提供全自动样品前处理方 法，用于监测植物油行业的加工污 染、通过混合分析掺假或矿物油碳氢 化合物（MOSH、MOAH）的转移。
其他重要应用包括脂肪含量、组成、营 养价值或顺式/反式异构体的表征。PAL System提供全天候操作的自动提取、皂 化、衍生和在线GC进样。
PAL System可满足为食品和饲料分析需求 的稳步增长提供高样品通量、可重复和无 错误的样品前处理的自动化解决方案。
High-Throughput Mega-Method for the Analysis of Pesticides, Veterinary Drugs, and Environmental Contaminants by UHPLCMS/ MS and Robotic Mini-SPE Cleanup + LPGC-MS/MS, Part 1: Beef
Keywords: pesticides, veterinary drugs, environmental contaminanst, QuEChERS, GC-MS, LC-MS, beef
J. Agric. Food Chem. (2020)
Quantification of allergenic plant traces in baked products by targeted proteomics using isotope marked peptides
Keywords: Allergenic food, plant allergen (soy, sesame, lupine), LC-MS/MS, quantification of allergenic plant traces, food labeling
Food Sci. Technol. (2016), 74, 286-93
Automated Mini-Column Solid-Phase Extraction Cleanup for High-Throughput Analysis of Chemical Contaminants in Foods by Low-Pressure Gas Chromatography—Tandem Mass Spectrometry
Keywords: High-throughput automation, solid-phase extraction, cleanup, pesticide residue analysis, QuEChERS sample preparation, fast GC-MS/MS, analyte protectants, environmental contaminants, foods
Chromatographia (2016) DOI:10.1007/s10337-016-3116-y
Determination of sulfur and nitrogen compounds during the processing of dry fermented sausages and their relation to amino acid generation
Keywords: Sulfur, nitrogen, volatile compound, amino acid, odor-active compound, sausage, solvent assisted flavor evaporation
Food Chem, 190 (2016) 657-664
Development of an Automated Column Solid-Phase Extraction Cleanup of QuEChERS Extracts, Using a Zirconia-Based Sorbent, for Pesticide Residue Analyses by LC-MS/MS.
Keywords: QuEChERS, micro SPE, LC-MS/MS, ITSP, µSPE, Z-Sep, zirconia, pesticide, multiresidue, avocado, citrus
J Agric Food Chem, 2015, 63(21) 5107-19
Universal Route to Polycyclic Aromatic Hydrocarbon Analysis in Foodstuff: Two-Dimensional Heart-Cut Liquid Chromatography−Gas Chromatography−Mass Spectrometry
Keywords: PAHs, polycyclic aromatic hydrocarbons, 2D LCxGC-MS, food
Anal Chem 2015 87(12):6195-203
Determination of Wine Aroma Compounds by Head Space “In tube extraction” Technique and Gas Chromatography (HS-ITEX-GC/MS)
Keywords: White wine, aroma compounds, vintage influence, ITEX, GC/MS
Bulletin UASVM Food Science and Technology 72(1) / 2015 (OPEN ACCESS)
Enantiodifferentiation of 3-sec-butyl-2-methoxypyrazine in different species using multidimensional and comprehensive two-dimensional gas chromatographic approaches.
Keywords: 3-sec-Butyl-2-methoxypyrazine, heart-cutmultidimensional gas chromatography, comprehensive two-dimensional gas chromatography, mass spectrometric detection, enantiodifferentiation
Anal. Bioanal. Chem. 2015, 407, 253-63
In-Tube Extraction-GC/MS as High Capacity Enrichment Technique for the Analysis of Alcoholic Beverages.
Keywords: ITEX, microextraction, GC/MS, volatile constituents, beer varieties
J. Agric. Food Chem. 2014, 62 (14), 3081–3091
Chemometric Discrimination of Different Tomato Cultivars Based on Their Volatile Fingerprint in Relation to Lycopene and Total Phenolics Content
Keywords: Anti-oxidant capacity, in-tube extraction ITEX, PCA, phenolic compounds, tomatoes, volatiles
Phytochem. Anal. 2014, 25 (2), 161-9
Unravelling ionization and fragmentation pathways of carotenoids using orbitrap technology: a first step towards identification of unknowns
Keywords: carotenoids, orbitrap, ionization, fragmentation, identification
J. Mass Spectrom. 2013, 48, 740-754
In-tube Extraction and GC-MS Analysis of Volatiile Components from Wild and Cultivated sea buchthorn (Hippohae rhamnoides L. ssp. Carpatica) Berry Varieties and Juice
Keywords: GC-MS, in-tube extraction ITEX, principal component analysis, volatiles, sea buckthorn fruit
Phytochem. Anal. 2013, 24, 319-328
Caffeine in Your Drink: Natural or Synthetic?
Keywords: compound-specific isotope Analysis (CSIA), high-temperature reversed-phase liquid chromatography isotope ratio mass spectrometry, HT-RPLC/IRMS
Anal. Chem. 2012, 84, 2805−2810
Automated and quantitative headspace in-tube extraction for the accurate determination of highly volatile compounds from wines and beers
Keywords: ITEX, GC, wine, beer
J. Chromatography A, 1230 (2012) 1– 7
Characterization of Novel Varietal Floral Hop Aromas by Headspace Solid Phase Microextraction and Gas Chromatography−Mass Spectrometry/Olfactometry
Keywords: SPME, GC-MS
J Agric Food Chem. 2012; 60: 12270−12281
Aroma chemical composition of red wines from different price categories and its relationship to quality.
Keywords: wine aroma compounds, odorant composition, GC/MS
J Agric Food Chem. 2012; 60:5045-56
定蛋白质组学 2005, 5, 3836-3846
Analysis of Volatile Organic Compounds in Durian by Static Headspace and ITEX-DHS GC-MS
The distinctive onion and fruity odorous compounds were detected by both static headspace and ITEX-DHS techniques.
Automated Determination of Fatty Acid Methyl Esters using a Method developed by PAL Method Composer
An efficient method for the generation and GC-analysis of FAME was generated using PAL Method Composer ver. 1.4. PAL Method Composer allows to rapidly generate methods by simple drag & drop operations.
Automated Sample Prep Workflows: Save money and time
This compendium on instrumental sample preparation showcases the many proven solutions of automated sample preparation workflows for food, environmental, pharma, life science analysis, and beyond.
PAL Ingenious News November 2022
A Comparison of ITEX Dynamic Headspace–GC/MS to other Enrichment Techniques for Analysis of Flavoring Compounds
The automated ITEX Dynamic Headspace unit demonstrated equivalent accuracy and precision when compared to purge and trap and overall was more sensitive than the other enrichment techniques. The ITEX unit allows for automated analysis and optimization of conditions which drastically reduces analyst’s time when compared to performing the experiments manually with the purge and trap without any reduction in sensitivity, accuracy and reproducibility.
Analysis of volatile compounds from honeys to differentiate plant and geographical origins
The analysis of volatile organic compounds (VOCs) is a faster approach to identify the honey’s origin than traditional methods, which is important for the quality control of honeys. In-tube extraction dynamic headspace (ITEX-DHS) is a fully automated microextraction technique, in which the enrichment of analytes takes place by repeated aspiring and dispensing of the sample headspace through a sorbent trap
Advantages of automated and miniaturized µ-SPE clean-up in pesticides residues analysis
Recent developments in pesticides analysis extend the well-established methods to higher productivity and reliability while minimizing consumption and exposition to harmful chemicals. A workflow was developed that allows automatic preparation of calibration standards, automatic sample dilution, and automatic clean-up of sample extracts on one instrument, showing that miniaturized automated solutions are reducing errors, improving analytical consistency and protecting the environment in one convenient approach.
Thomi Preiswerk, Senior Account Manager, CTC Analytics AG
Gwen Lim , Specialist for automated sample preparation, CTC Analytics
Ederina Ninga, Postdoc, Research Group for Analytical Food Chemistry, Danish Technical University
Analysis of flavors, pesticides, and biomarkers directly from complex food matrix using the automated Vacuum In-Tube Extraction (V-ITEX)
Extraction of volatile compounds is a widely used approach for analysis of foods and beverages. By the nature of gas phase sampling, the limiting factor for polar analytes are given by low vapor pressure or higher boiling points of semi-volatile compounds. These limitations can be overcome by sampling at decreased pressure levels using vacuum conditions. This has been shown in several publications using vacuum sampling techniques. In this study, a fully automated approach of Vacuum In-Tube Extraction (V-ITEX) is presented, a simple and fully automated technique using PAL system autosamplers. The application examples include flavors, fragrances, off-flavors, pesticides and biomarkers by extractions directly from the food sample matrix, such as Honey, Bee Wax, Cheese, Onions, Blood and Urine.
Pascal Fuchsmann, Head of Flavor Analytics Agroscope
Stefan Cretnik, Product Manager CTC Analytics AG