Calibration, qualification, and validation

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Showing 31-60 of 73 results

Analysis of Residual Solvents in Hemp Extract by Headspace SPME-GC/MS

The use of solid phase microextraction (SPME) allowed for the straightforward, fast, sensitive, and accurate GC/MS determination of the residual solvent content of spiked and unspiked samples of hemp extract.

Hydrocarbon Oil Index in Water, Soil and Sludge

The special mineral oil standard mixture type A and B, which is used as a stock solution for calibration, is produced gravimetrically from the certified reference material BAM-K010 supplied by the Federal Institute for Materials Research and Testing BAM.

Determination of Triclosan in Environmental Waters

Triclosan was detected in waste water plant discharge using HPLC followed by UV and MS/MS detection.

Chiral and Achiral LC-MS Analysis of Warfarin™ in Plasma Samples

This study demonstrates the analysis of Warfarin in plasma samples utilizing chiral and achiral (reversed-phase) LC-MS and effective sample prep to remove endogenous phospholipids

Accurate Biological Testing for Amphetamine and Methamphetamine Abuse Using Chiral HPLC and MS Detection

Optimized sample prep and chiral chromatography methods for the LC/MS analysis of these drug enantiomers in urine

GC Analysis of cis/trans C18:1, C18:2, and C18:3 FAME Isomers on SP™-2560

Technical article on GC Analysis of cis/trans C18:1, C18:2, and C18:3 FAME Isomers on SP™-2560

US EPA Method 8015 (modified): GC Analysis of Gasoline Range Organics (GRO) on SLB®-5ms, Direct Injection

-Xylene 1000 μg/mL; 1,2,4-Trimethylbenzene 1000 μg/mL

Capillary GC Columns for GC x GC

GCxGC is one of the fastest growing areas in analytical chemistry due to its ability to resolve a large number of compounds, even in the most complex samples. No other chromatographic technique can match the level of detail it provides.

MET-Biodiesel Capillary GC Column

B100 biodiesel analysis of free glycerin & total glycerin by Gas Chromatography using the Supelco MET-Biodiesel capillary gc column for ASTM D6584 & EN 14105

Determination of Quinine in Tonic Water and Caffeine in Coffee and Cola Drinks Using TLC-MS

HPTLC–MS analysis of quinine in tonic water and caffeine in coffee and cola drinks. Tonic and cola drinks decarbonized through ultrasonication, and coffee extracted through PTFE filter.

Using Fast GC and Column Selectivity to Optimize Trans FAME Analysis

Fast GC analysis is typically performed using short, 0.10 mm I.D. capillary columns with H2 carrier gas and rapid temperature programming rates. FAMEs can be analyzed with a variety of 0.10 mm I.D. columns, depending upon the information required.

Qualitative Thin Layer Chromatography Analysis Ginkgo

Qualitative Thin Layer Chromatography Analysis of Flavonoids and Quantification of Terpene Lactones in Ginkgo Biloba Extracts and Tablets

US EPA Method 552: GC Analysis of Haloacetic Acids (Methyl Ester Derivatives) on Equity-1701

GC Analyses of FAMEs by Boiling Point Elution

Determination of Lactose in Dairy Products Using TLC-MS

Straightforward HPTLC-MS analysis of lactose in dairy products (milk or yoghurt) using only protein crash, centrifugation and dilution as sample preparation.

ENVI-Carb Plus for the Extraction of Propylene Glycol and Ethylene Glycol from Water

Reversed-Phase HPLC Analysis of Insulin Variants and Analogs by UV and Mass Spectral Detection

Insulin is an approximately 6000 Da peptide hormone used to regulate the glucose concentration in blood. There are several different forms of insulin that are both natural and recombinant; the recombinant forms have been engineered to improve pharmacokinetic properties. A

Antibody Drug Conjugate Mimic Enables LC-MS Method Development Without Risk

Here we show how LC and MS methods may be optimized using a non-toxic surrogate of the ADC, an “ADC-mimic”, that behaves very similarly to the Cys-linked ADC Adcetris (Seattle Genetics).

GC Analysis of Total Petroleum Hydrocarbons (TPH) on SLB®-5ms

Separation of Hexane; Heptane; Octane; Nonane; Decane; Undecane; Dodecane; Tetradecane; Hexadecane; Octadecane; Eicosane; Tetracosane; Octacosane; Dotriacontane; Hexatriacontane; Tetracontane; Tetratetracontane

radiello® Diffusive Air Sampling Application - Volatile Organic Compounds (VOCs) Thermally Desorbed

Volatile organic compounds are trapped by adsorption and recovered by thermal desorption, analysis is performed by capillary gas chromatography and FID or MS detection.

Clinical Application of SPME: Analysis of VOCs in Exhaled Breath as Cancer Biomarkers

This report demonstrates the potential of solid phase microextraction as a clinical research tool for the extraction of VOCs associated with lung cancer from human breath.

Analysis of Active Cannabis Compounds in Edible Food Products: Gummy Bears and Brownies

Potency testing in marijuana-infused edibles is an important problem that analytical labs are facing due to the complexity of the involved matrices. Concentration of active ingredients in these edibles can range from a few parts per million to 3.5 parts

Testing Food for Fipronil Contamination

Test your food for fipronil contamination using our analytical standards, certified reference materials, solvents, and columns for analysis.

LC-UV-MS Method Development for Antibody Drug Conjugates Using a Non-Toxic ADC-Mimic

SigmaMab Antibody Drug Conjugate Mimic, is a non-toxic drug mimic utilized as a standard for mass spectrometry and high performance liquid chromatography.

Using UHPLC/MS (TOF) for Detection of Drugs and Metabolites in Urine Following Optimized Enzymatic Hydrolysis Conditions

To optimize hydrolysis using β-glucuronidase, factors such as incubation time, temperature, hydrolysis pH, enzyme source, and enzyme concentration must be evaluated for each glucuronide metabolite to be analyzed.

Acrylamide in Food

Acrylamide analysis has been a very hot topic since the chemical was identified in food in 2002 by researchers at the Swedish National Food Administration.

Detection and Determination of Caffeine, Taurine and Arginine in Shampoos by HPTLC

The modern thin-layer chromatography (TLC) offers advantages also in the field of cosmetics to quickly and simultaneously analyze samples with densitometric detection.

Analysis of Fipronil and Fipronil Sulfone in Eggs, Chicken Meat and Mayonnaise

A short abstract on a method using QuEChERS and GC/MS/MS for determination of fipronil & fipronil sulfone.

HPTLC Application for Passiflora incarnata

Effective analysis of passion flower by HPTLC fingerprinting, in conjunction with a comprehensive range of related reference materials, enables fast and efficient identification of this plant material.

Analysis of Bisphenol A in Food by Solid Phase Microextraction Using an Overcoated Fiber

Bisphenol A (BPA) is suspected to be an endocrine disruptor. Regulations on specific migration limits (SML) from food contact materials are getting tighter (EU 2018/213) requiring more sensitive determinations. An overcoated SPME fiber provides the durability necessary for direct

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