QSight Triple Quad 400 Series

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

Veterinary drugs are used in animal production to treat diseases, prevent infection and protect growth of animals, which helps provide quality marketplace. However the uncontrolled use may cause heavy human disease so regulatory agencies around the world have established maximum residue levels (MRLs) or tolerances of veterinary drugs in foods. Drug analysis is generally challenging, due to the complexity of sample matrices and diversity of analytes from various classes of chemical properties. In this study, a fast, sensitive and selective method has been developed for analysis of 73 veterinary drugs (covering 13 different chemical classes) in chicken samples by coupling solvent extraction method with LC/MS/MS.

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.

Testing for the levels of pesticide and mycotoxins in cannabis is important to ensure consumer safety and quality control. In this work, the PerkinElmer application development team analyzed all 66 pesticides (including very hydrophobic and chlorinated pesticides typically analyzed by GC-MS/MS) and five mycotoxins spiked in cannabis flower extracts well below the action limits specified by the state of California. A LC-MS/MS instrument was used with ESI and APCI sources and a simple solvent extraction method with excellent recoveries for all analytes in acceptable range of 70-120%.

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.

Several directives throughout the EU provide guidance on environmental quality standards for water, and define more than 30 priority substances as significant risk to humans. Many of the monitoring limits within these directives are set at low µg/L (ppb) levels, and as such, require highly sensitive methods and instrumentation.

In this study, various methods for the separation, detection and quantitation of complex polar contaminants by UHPLC/MS/MS are presented. Utilizing two columns and three separate analytical methods, metabolites such as trifluoracetic acid, the antidiabetic metformin, and various inorganic contaminants, such as chlorate and bromate are successfully and efficiently quantified.

Estrogens play an important role in human breast carcinogenesis and are of clinical importance. Currently, the most widely used techniques are automated immunoassays, owing to the fast sample throughput and minimal sample preparation required. However, these techniques suffer from poor accuracy and precision at low concentration levels, and are susceptible to interferences. The objective of this study was to develop a highly sensitive method for the analysis of estrogens in serum, without derivatization, using the QSight® 420 LC/MS/MS system.

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 their own lists of pesticide residues relating to medical marijuana and cannabis testing.

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 ingredients in many foods, particularly in infant formulas. When analyzing fortified foods, this can be particularly challenging due to the wide range in concentration of vitamins, in keeping with daily allowances. This application note presents a LC-MS/MS method for the efficient, routine and robust chromatographic analysis of B-vitamins in infant formula. Eight water soluble vitamins over a wide concentration range were identified and quantified in under four minutes. The results showed excellent retention time repeatability and the method was able to detect vitamin B12 at 0.5 ppb, well below the expected level of ~2 ppb in infant formulas.

Since 2003 the usage of azo and non-azo dyes for food coloring has been declared as illegal by many of the food international authorities across the globe. That is because these substances such as Sudan I,II,III,IV and Rhodamine B, are potentially carcinogens and genotoxin in nature. As of now, no official methods have been published for the detection of illegal dyes however, the most used analytical technology is GC-MS or HPLC coupled with UV or MS detection.

Fipronil is a broad-spectrum phenylpyrazole insecticide almost used to protect corps from insects but also to treat lice and ticks in chickens. The U.S. EPA classified fipronil as Group C, possible human carcinogen, therefore International organizations defined admissible limits for the fipronil usage which in egg is of 5 µg/L4. LC-MS/MS technology can provide a robust and reliable method to detect such a contaminant in food.

Polycyclic aromatic hydrocarbons (PAHs) can contaminate foods during smoking, heating, and drying processes that allow combustion products to come into direct contact with food. They can also enter food supply chains through contaminated air and water, and accumulate in various food chains. Regulations are in place to monitor PAHs levels in foods; the EU set a stringent maximum residue limit (MRL) for BaP in muscle meat of smoked fish and smoked fishery products at 2 µg/kg.2 In this study, seafood samples were prepared using a QueChERS extraction method followed by a dispersive solid-phase extraction clean-up step. The samples were subsequently analyzed by coupling a UHPLC system with a triple quadrupole mass spectrometer.

In apiculture, sulfonamides are the most commonly used antibiotics to treat American and European Foulbrood, a type of disease that infects bees. This application note demonstrates how QSight 200 System can provides a very sensitive and robust platform for the analysis of sulfonamides in honey.

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.

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 must 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.

The Grape crop is one of the most important fruit crops consumed in the world. Grapes are consumed both as fresh and as processed products, such as wine, jam, juice, jelly, grape seed extract, raisins, vinegar and grape seed oil. A large variety of pesticides are used in grape production throughout its growing season to control pests and diseases in vineyards and to increase crop yield. Pesticide residue is a major concern for the stakeholders of the grape industry, due to more and more stringent regulations and safety standards in most countries.

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

Whether your lab is well established or just starting up, having a single-source partner who can offer turnkey solutions that meet the current regulations is essential to a successful business. For years, we’ve worked with government and contract cannabis laboratories to develop industry-leading methods, technology, and exceptional return on investment. We help drive analytical standards and commit to ensuring your laboratory has maximum uptime. Learn about our various testing methods and applications for cannabis analyses. Let us work with you to build an efficient workflow, so you can focus on growing your business and brand.

For third party food testing labs or producers who want to conduct aflatoxin M1 analysis in dairy products, our automated aflatoxin M1 ELISA assay and QSight LC/MS/MS aflatoxin M1 analyzer provide sensitive, accurate, and fit for purpose screening and confirmative analysis solutions that you can use out of box.

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.

Food testing labs like yours are constantly challenged with accurately analyzing samples quickly and efficiently - all while striving to reduce costs due to market forces. Your commitment to ensuring meat and seafood are safe for consumption, as demand increases, is an uphill battle.

Our commitment to you: to provide a range of solutions across multiple technologies, products, and services that meets or exceeds the testing needs of food processors. Our solutions offer more efficiency and increased accuracy and sensitivity for better yields in real time with minimal training.

From instrumentation and software to consumables and reagents to service and support, we are dedicated to providing you with end-to-end solutions that ease your everyday challenges of automation, throughput, service, and time to results.

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.

Whatever your separation challenge, your choice of liquid chromatography (LC) column can make all the difference. Our Quasar portfolio of LC columns combined with the improved work?ow and usability of the LC 300 system allows you to achieve rugged and reproducible results. Now, with the purchase of an LC 300 system, you can pick out a Quasar LC column free of charge. Learn more below.

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.

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