Flexar LC

In this application, we describe a technique for the monitoring of six cannabinoids, including THC and CBD, in hemp seed oil by HPLC with PDA detection. Figure 1 shows the chemical structures for the six cannabinoids. In recent years, scientific knowledge regarding the composition and health benefits of edible hemp products has significantly increased. Hemp seed oil has been promoted as a good source of nutritious omega-6 and omega-3 polyunsaturated acids, and may be a cleaner, more sustainable alternative to fish oil.

Capsaicinoids are the compounds that produce the pungency, aroma and flavor of chili peppers. The two most abundant capsaicinoids in chili peppers are capsaicin (8-methyl-N-vanillyl-trans-6-nonenamide) and dihydrocapsaicin. Combined, these two make up close to 90% of the most pungent varieties of capsaicinoids, with capsaisin making up about 71%. The capsaicin content of peppers is one of the parameters that determine their commercial quality. The amount of capsaicin can vary, depending on the light intensity and temperature at which the plant is grown, the age of the fruit, and the position of the fruit in the plant. Besides their widespread uses in foods, capsaicinoids are increasingly being used as the active component in pharmaceuticals and have been used as an analgesic against arthritis pain and inflammation. They have also been reported to be active against neurogenic inflammation (as in pepper sprays) and have shown protective effects against high cholesterol levels and obesity. Considering the increased use of capsaicinoids in both foods and pharmaceuticals, there is an increasing demand for their accurate quantitation as part of monitoring the quality of chili peppers. In this regard, this application focuses on the extraction, HPLC separation and quantitation of capsaisin and dihydrocapsaicin in two store-bought chili pepper powders.

The misuse of cold remedies can be prevented by appropriate medical indications and accurate label claims. To that end, the U.S. Food and Drug Administration and the pharmaceutical industry have made it a standard procedure to routinely test drug products to ensure the accuracy of the amount of active ingredients. This application note presents a method for the simultaneous analysis of acetaminophen, dextromethorphan and phenylephrine. Method conditions and precision are presented. A cold medicine tablet is analyzed and the type and amount of active ingredient are confirmed.

Organic acids, used as preservatives, acidulants or stabilizers in food, contribute to the sensory properties of foods and beverages by providing both taste and aroma. Monitoring the content of organic acids in foods is an important step in the food manufacturing process, as well as quality and regulatory protocols, to ensure the purity and composition of finished products. In this application note, a simple and robust HPLC method for the analysis of organic acids in store-bought fruit juices is presented.

With an emphasis on decreasing calorie intake, more and more individuals are focusing on lowering their sugar consumption from foods and beverages. In response to this, food/beverage manufacturers are now introducing the highly touted sugar substitute rebaudioside A (Reb A), in place of all or most of the sugar in certain foods and beverages.,

This application describes an analytical method for the chromatographic separation and quantitative monitoring of seven primary cannabinoids, including THC and THC-A, in cannabis extracts by HPLC with PDA detection. Naturally occurring cannabinoids, the main biologically active component of the cannabis plant, form a complex group of closely related compounds, of which 113 are known and 70 are well described. Of these, the primary focus has been on Δ-tetrahydrocannabinol (THC), as the primary active ingredient due to its pharmacological and toxicological characteristics, upon which strict legal limits have been enforced.

This application describes the sample preparation and analytical method for the chromatographic separation and quantitative monitoring of twelve primary cannabinoids in the extracts of several food matrices by HPLC, using photodiode array (PDA) detection. The method provides exceptional chromatographic repeatability and affords LOQs well below the current concentration levels of interest for cannabinoids in edibles. Thereupon, the method/procedure defined herein can be expected to fulfill the essential task of ensuring product uniformity and cannabinoid screening in edible foods.

Polycyclic aromatic hydrocarbons (PAHs) are prevalent in a number of environmental matrices, and are created as a result of the combustion of fossil fuels. PAHs are water soluble and toxic to invertebrate aquatic organisms. They have also been shown to bioaccumulate in the environment, and their solubility results in binding with soils, sediments and particulate matter. Many government agencies, such as the US EPA, have established regulatory limits for PAHs in environmental matrices. In this application, utilizing a spiking experiment, the levels at which PAHs in surface water can be monitored by UHPLC, with a sub-2 µm particle sized column combined with photo diode array (PDA) and fluorescence (FL) detection, are investigated.

The food industry routinely fortifies many foods with vitamins to enhance their nutritional value and to help with deficiencies in dietary requirements. However, to meet legal requirements, the manufacturers must label their products in accordance to the specific regulations pertaining to the country in which the products are sold and consumed. In 2009, the United States Pharmacopeial Convention introduced the USP Dietary Supplements Compendium (DSC) – an industry directed resource, including regulatory guidance and reference tools. In the U.S., the Food and Drug Administration (FDA) regulates all dietary supplement products and manufacturing practices under 21 CFR (Code of Federal Regulation), Part 111. In Europe, the main EU legislation for vitamins and minerals in food supplements is Directive 2002/46/EC. Considering the above, this application focused on providing a robust chromatographic method for the separation of eight water-soluble B vitamins in vitamin supplement tablets using HPLC with photodiode array (PDA) detection.

This work pursued an effective, efficient and robust HPLC method for the quantitative analysis of lactic and acetic acid in beers by HPLC with PDA detection.

Lactose, also referred to as milk sugar, is the primary carbohydrate present in dairy products. Globally, the analysis of lactose is especially important due to the many individuals suffering from lactose intolerance. The work presented herein provides a method for the routine sample preparation and quantitative determination of lactose in mozzarella and ricotta cheeses and milk. As the monosaccharaides glucose and galactose can be hydrolytically or enzymatically produced from lactose, these two sugars were also chromatographically separated, though not quantitated. The method uses an Altus^™ HPLC system with refractive index (RI) detector, which is especially effective for analyzing analytes with little or no UV absorption, such as many dietary sugars.

This application brief provides a routine and reproducible method for the HPLC analysis of 11 organic acids commonly found in juices and other beverages, focusing especially on the relatively higher molecular weight acids.

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.

Feed milling today is a complex business, and agribusinesses both large and small need to balance the nutritional and safety needs of livestock with availability of raw ingredients and their seasonality and variability. Add to that the valuable supplementation and medication that millers supply, and it’s clear: you’re creating a complete nutritional delivery system, not just a simple mix of grains.

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.

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.

Oil refineries and natural gas producers around the world require their lab operations to perform large numbers of analyses before their products are used in industries and by consumers. Detection of even the slightest impurities, accurate process control and hydrocarbon distribution analysis is critical to the success of these operations.That’s how PerkinElmer can help. As a global scientific leader and solutions provider to refining and natural gas labs, PerkinElmer's proven technology and experience meets the ever-changing needs of the oil and gas industry. PerkinElmer is committed to the success of your oil and gas sample analysis by providing the instrumentation, software, consumables, and services you need for fast, easy and precise testing. The result: better control of your operations and improved product quality.

Today’s advanced and increasingly diverse chromatography laboratories are facing new challenges on a daily basis – starting from raw materials right up to the finished product. Our comprehensive portfolio of analytical solutions is designed to give you the higher accuracy, sensitivity, and ease of use your laboratory demands for examining with confidence, the purity, composition, and performance of your compounds. What’s more, a range of complementary services is available to keep your laboratory up and running, meeting the stringent requirements of a variety of environments and working practices.

Trust the consumables engineered for your instruments.

Quality control-monitoring and testing are important in ensuring the quality of palm oil. The quality control parameters are used to judge the quality of palm oil products and it can be monitored and tested to ensure that the palm oil is not deliberately or accidentally adulterated.

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? Workflow 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.

Product Certificate for the Flexar LC Pumps

Product Certificate for the Flexar Solvent Manager

Product Certificate for the Flexar PDA Plus Detector, Photodiode Array Detector LC 300 and Multi-Wavelength UV/VIS Detector LC 300

Product Certificate for the Flexar UV/VIS LC Detector, Flexar FX UV/VIS LC Detector and UV/VIS Detector LC 300