QSight Triple Quad 400 Series

QSight LC/MS/MS evaluates eliminating sample preparation for trace level pesticide in wine

A New, Sensitive Method for Lignan Metabolite Detection of Flaxseed-Fed Mice Using LC/MS/MS

Per- and polyfluoroalkyl substances (PFASs), or Per- and polyfluorinated compounds (PFCs), represent a group of anthropogenic chemicals that have been produced and widely used in industrial applications and consumer products since the 1950s. The unique physical and chemical characteristics of these compounds (highly stable and resistant to degradation), along with their ubiquitous use, have led to the accumulation of PFAS in the environment, with growing concern of human exposure to these chemicals. The most widely used analytical method for PFAS monitoring is LC/MS/MS owing to its high sensitivity, selectivity and robustness. Recently, with the advancement and availability of highly sensitive mass spectrometers, a trend towards developing a high throughput analytical method for monitoring PFASs by direct injection without SPE has been appreciated. The direct injection approach can achieve higher levels of sample throughput, and reduce potential analyte loss and contamination caused by SPE sample preparation, as demonstrated by this study using PerkinElmer’s QSight^® 420 mass spectrometer, coupled with UHPLC for the determination of trace amount of PFOA and PFOS in drinking and surface water samples.

Aflatoxin B1 is considered to be the most genotoxic of the mycotoxins, and, when ingested by cows, is converted to aflatoxin M1 which has been shown to cause liver cancer in certain animals.

Haloacetic acids (HAAs) are a class of undesired by-products resulting from the reaction of chlorinated disinfectants with natural organic matter in water. The resulting substances are considered major disinfection by-products (DBP), which are known for being carcinogenic and also associated with reproductive problems in humans. The five major HAAs of particular concern include monochloroacetic acid (MCAA), monobromoacetic acid (MBAA), dichloroacetic acid (DCAA), dibromoacetic acid (DBAA) and trichloroacetic acid (TCAA). Haloacetic acids are regulated by the U.S. Environmental Protection Agency (EPA) government. In this application note, a reliable and fast method for determination and quantification of five HAAs in potable drinking water is presented using a PerkinElmer QSight® LX50 UHPLC system coupled to a PerkinElmer QSight 220 MS/MS detector. The five HAAs eluted within three minutes with excellent reproducibility.

Mycotoxins produced by fungi as toxic secondary metabolites, leave grains, maize and cereals particularly vulnerable. With this in mind, and considering that an estimated 25% of all crops show some signs of mycotoxin contamination, many countries have established regulatory guidelines for maximum mycotoxin limits in not only feed and grain, but also in processed food products.

Liquid chromatography-tandem mass spectrometry (LC/MS/MS) has become the method of choice for pesticide The state of Oregon has issued regulatory limits for 59 pesticide residues in both cannabis flower and concentrates, while other states have come up with

Analysis of target pesticide residues in berries using a unique laminar flow UHPLC-ESI-MS/MS

Water-soluble vitamins (WSV), comprised primarily of the vitamin B complex, are essential ingredient

In this work, we present a fast and sensitive LC/MS/MS method

Analysis of glyphosate and similiar polar pesticides in oatmeal using the PerkinElmer QSight LCMSMS.

Agricultural growing of hemp products for the purposes of cannabidiol (CBD) extraction was legalized in the United States with the passing of the Agricultural Improvement Act of 2018. Since the act passed, heightened concern over the use of pesticides in hemp production has been appreciated. However, no federal guidance is currently available in the United States to standardize analytical methods for the detection and quantification of pesticide residues in hemp products.

In this application note, a robust and efficient single-run LC/MS/MS method for the determination of 66 pesticides, including hydrophobic and chlorinated pesticides typically analyzed by GC/MS/MS, is presented. Utilizing a PerkinElmer QSight^® 420 UHPLC with MS/MS detector and dual ESI and APCI sources, excellent recoveries in the range of 70-120% were achieved. The application note also outlines participation in an Emerald Scientific blind proficiency test, with acceptable results for all 66 pesticides.

Estrogen plays an important role in the human body, but excess concentrations of endogenous estrogens, a known endocrine disrupting compound (EDC), in urine have been linked to the development and growth of breast cancer and tumors in females. Endogenous estrogens, including estrone (E1), 17ß-estradiol (E2), and estriol (E3), have also been detected in environmental matrices such as surface, waste and drinking water, even after extensive removal treatments. The accurate and efficient quantification of estrogen in both urine and water is paramount to ensuring the health of humans and animals in impacted ecosystems.

This application note details a method for the analysis of three endogenous estrogens at low ng/L (ppt) levels in both urine and water matrices. The method presented utilizes a PerkinElmer QSight^® 420 triple quadrupole LC/MS/MS, and demonstrates good linearity, precision and accuracy, without the need for derivatization and concentration with SPE.

Following the 2018 legalization of recreational cannabis usage in Canada, the quality and safety of cannabis products has garnered significant attention. Health Canada has developed a regulatory program mandating pesticide testing on all cannabis products. Under the program, licensed producers (LPs) of cannabis products in Canada are required to send representative samples of products to independent laboratories for pesticide screening and quantification.

In this application note, a robust and reliable method for the analysis of 96 pesticides in cannabis flower by LC/MS/MS utilizing both ESI and APCI modes is presented. The method not only offers ultra-low detection limits at or below the Health Canada regulatory levels, but also offers significant efficiency gains over other available methodologies. Utilizing LC/MS/MS with both ESI and APCI modes obviates the need to perform both GC/MS/MS and LC/MS/MS analyses to analyze all 96 regulated pesticides, saving significant time and money for operators.

EU water policies are reevaluated on a consistent basis to ensure water sources do not contain contaminants at levels above regulatory levels. As regulations are reviewed, regulatory limits are often lowered, and analytical techniques mush adapt to meet the new stringent requirements.

In this application note, an LC/MS/MS method for the determination of 214 regulated contaminants is presented. The direct injection method, utilizing a PerkinElmer^® QSight 420, is optimized with the use of dual ionization sources (APCI and ESI). Additionally, an inter-laboratory study is detailed to illustrate the method transferability between instruments, utilizing the compound Atrazine.

The use of cannabis concentrates and CBD products (edibles, topicals, vape products, etc.) has increased in popularity as new regulation has been passed legalizing medicinal and recreational use in a number of states and provinces. Testing to ensure that pesticide and mycotoxin levels in cannabis products are below regulatory levels is critical, however, the cannabis concentrate matrix presents many analytical challenges including higher sample matrix effects and an increased concentration of cannabinoids in the sample.

In this application note, an LC/MS/MS method for the analysis of 66 pesticides (including hydrophobic and chlorinated pesticides typically analyzed by GC/MS/MS) and five mycotoxins in a cannabis concentrate matrix is presented. Utilizing a QSight® 420 LC/MS/MS instrument with dual APCI and ESI sources, the analysis yielded excellent recoveries and detection limits below those specified by the state of California cannabis regulations.

Today’s plastics are some of the most used materials on a global volume basis. Broadly integrated into today’s industrial and commercial lifestyles, they make a major, irreplaceable contribution to virtually every product category.

In this compendium you will find a wide range of applications for polymers, plastics, rubbers and advanced materials. Discover how to put these applications to work for you simply and efficiently.

Per- and polyfluoroalkyl substances (PFAS) are a diverse group of synthetic organic compounds which have been utilized as aqueous film forming foams (AFFF) for firefighting purposes, and as stain and water resistant coatings on a number of consumer products such as clothing, furniture or cookware. PFAS compounds are highly stable from a chemical and physical standpoint, and their resistance to degradation in the environment has led to concerns over accumulating levels of PFAS in environmental habitats.

In this application note, a versatile and efficient direct inject approach to the analysis of 17 PFAS compounds in drinking and surface water samples utilizing a PerkinElmer QSight^® 420 LC/MS/MS is presented. The method offers improved sample throughput, while reducing the potential of analyte loss and contamination that can result from SPE sample preparation.

This application note presents a sensitive and reliable LC/MS/MS method using the PerkinElmer QSight

A simple and sensitive method for the simultaneous determination of plant growth regulators

Learn more about our various testing methods and applications for cannabis analyses by reading through our Cannabis Testing brochure.

The grain industry is very complex. It’s global, diverse, and can also present analytical challenges. Today’s grain users demand more when it comes to quality, safety, and uniformity. In addition, they seek diverse products with unique characteristics.

PerkinElmer is equipped to help the grain industry in its quest to feed the world – nutritiously and economically. Our testing and analysis solutions encompass the three primary areas required for complete knowledge of grains and their derivatives – composition, functionality, and safety.

Pesticides can adversely affect human health through the food we consume but can also leach into soil and groundwater and impact us through the environment. To keep up with a complex and constantly changing regulatory environment, your pesticide analysis solution needs to keep up with your burgeoning sample load.

Our QSight triple quad LC/MS/MS family has always been known for its robust and reliable performance. But now there’s something new – something better: the high performance 400 series. Our ready-to-implement solution has the highest sensitivity and throughput the industry has ever seen and the capability to test for the most challenging samples and analytes.

Whether you’re a lab manager or a bench chemist, you know firsthand how things are changing quickly in food and environmental analysis. And your lab needs to change to keep pace.

Our QSight triple quad LC/MS/MS family has always been known for its robust and reliable performance. But now there’s something new – something better: the high performance 400 series.

The Polymer Market consists of a huge diversity of manufacturers of industrial products running many different processes yet still facing similar challenges. There is more and more pressure to achieve high product quality and reduce costs in order to stay one step ahead of the competition.

Our modular Simplicity 3Q™ software is ideal for acquiring, quantifying and reporting

Lab reequirements for QSight triple quad LC/MS/MS systems, including storage, suppleis, space, electrical, power, gas supply requirements

Simulation using sophisticated modeling techniques has become a powerful tool for mass spectrometry

Ion Transmission Through a Quadrupole Ion Guide Under the Combined Influence of Viscous Flow and RF

Theoretical Studies of Swirling Flow and Heating Methods on Droplet Evaporation in a Heated Coaxial