This study analyzed NH3, H2, N2, and H2O over a wide concentration range using an Agilent 990 micro gas chromatography system equipped with Agilent CP Mosieve and Agilent CP Volamine channels. It is worth noting that this analysis can be completed within one minute. We evaluated the performance of the method, including reproducibility, linearity, detection limit (LOD), and residue, and the results met the requirements.

In this paper, Agilent 1260 MDS multi detector system and Agilent 1260 Infinity III gel permeation chromatograph were used to analyze commercial polyether polyol samples. From the perspective of polymer conformation and hydrodynamic volume, the calculation of average molecular weight of polyether polyols using polyethylene glycol (PEG) narrow distribution relative calibration and the limitations of this method were discussed.

This study investigated Mipomersen [1] (trade name: Kynamro) in pig plasma; ）Taking quantitative analysis as an example, the excellent performance of the 6495D LC-MS/MS system in high sensitivity, low detection limit, and resistance to matrix interference was demonstrated, as well as the advantages of automated SPE workstations in reducing manual intervention time, improving operational consistency, and reliability. The results indicate that this integrated automated solution can replace manual operations in high-throughput oligonucleotide bioanalysis and provide excellent sensitivity, accuracy, and reproducibility.

This application brief introduces the methods of using Agilent Captiva EMR PFAS Food and Bond Elut PFAS Wax for sample purification, and combining Agilent 6495D triple quadrupole liquid chromatography-mass spectrometry (LC-MS/MS) to determine 30 PFAS pollutants in rice, spinach, and fish. This method is quantified using the internal standard method, and the recovery results show that both sample purification methods can achieve good accuracy and precision.

This application brief introduces a method of using tank sampling to analyze gases. Samples were injected into an Agilent 8890 gas chromatograph (GC) equipped with an Agilent 5977 single quadrupole mass selective detector (MSD) using a Markes Multi Gas thermal desorption instrument (TD) to analyze volatile organic compounds (VOCs) in the atmosphere or semiconductor cleanroom.

This article establishes a rapid analysis method for five chlorophenols in beer. This method uses Agilent 1290 II UHPLC system and Poroshell 120 Bonus RP chromatographic column to rapidly separate five chlorophenols. The results showed that the standard samples of various chlorophenols met the requirements of liquid chromatography separation and quantitative analysis in terms of peak shape, separation degree, sensitivity, and other indicators; At the same time, the chromatographic peaks of various chlorophenols in beer samples are not affected by other components.

This application brief introduces the method of analyzing 26 perfluorinated and polyfluoroalkyl compound (PFAS) standards using the Agilent InfinityLab Pro iQ Plus LC/MS system equipped with Agilent OpenLab CDS 2.8 software. The research results indicate that this method has good linearity, with R2 ≥ 0.99 for all analytes and a sensitivity of up to 0.1; ng/mL， Relative standard deviation (RSD) under limit of quantification (LOQ)<; 10%.

Based on the specificity of the chromatographic column and the characteristics of the sample, this study analyzed the IgG content in health food using an Agilent Bio-Mnolith Protein G chromatographic column, and measured IgG from different sources to verify the applicability of the Bio-Mnolith Protein G chromatographic column.

High precision greenhouse gas monitoring can accurately quantify carbon emissions, verify emission reduction effectiveness, and provide scientific basis for climate policies. The core technical requirements are to achieve ppb level detection limits and high-precision multi-component synchronous analysis. This application brief demonstrates how the Agilent 8890 gas chromatography system can be optimized on a multi valve and multi column system to achieve high-precision monitoring of four key greenhouse gases in the atmospheric background, providing reliable and easy-to-use analytical solutions for environmental monitoring stations at all levels.

Human milk oligosaccharides (HMOs) are the third largest solid component in breast milk after lactose and fat, and play an important role in the growth and development of infants and young children. HMOs have functions such as regulating gut microbiota, maintaining intestinal barrier integrity, promoting immune system development, promoting brain development, and resisting infections.

The Cary 3500 multi cell UV visible spectrophotometer has advanced functions such as multi cell synchronous measurement and built-in derivative calculation, which can simplify the data acquisition and analysis process, making it a valuable tool for peptide stability research in biopharmaceutical applications.

This article introduces a method for accurately determining rare earth impurity elements in neodymium iron boron using Agilent 5800 ICP-OES combined with Fast Automatic Curve Fitting (FACT) technology. This method utilizes FACT to effectively remove spectral line interference between rare earth elements; The correlation coefficients of all element calibration curves after model correction are higher than 0.999, and the spiked recovery rates of 13 rare earth impurity elements are between 90.4% and 111.3%.