MCX SPE purification of catecholamines from urine samples

Isolation of Catecholamines from Urine Using MCX SPE

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Clinical Importance of Catecholamine Monitoring Catecholamines, including dopamine, norepinephrine, and epinephrine, are critical biomarkers for diagnosing and managing neuroendocrine tumors such as pheochromocytoma and neuroblastoma. They also play a key role in assessing autonomic nervous system function and monitoring stress responses. Accurate measurement of these analytes in urine provides a non-invasive window into systemic catecholamine […]

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SPE cleanup and extraction of mycotoxins from corn samples

SPE Workflow for Detecting Mycotoxins in Corn Samples

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Introduction Mycotoxin contamination in corn is a critical food safety issue worldwide. Aflatoxins (B1, B2, G1, G2) and fumonisins (B1, B2) are among the most prevalent and toxic mycotoxins produced by Aspergillus and Fusarium species. Regulatory agencies such as the FDA and EU have set strict maximum limits (e.g., 20 ppb for aflatoxins in human

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WAX SPE cartridge extraction of PFAS acids from water samples

Using WAX SPE to Isolate Perfluorinated Acids in Water

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Overview of Perfluorinated Acids in Water Systems Per- and polyfluoroalkyl substances (PFAS), particularly perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS), have emerged as global contaminants in groundwater, surface water, and drinking water. These compounds are highly persistent, bioaccumulative, and associated with adverse health effects. Regulatory agencies such as the U.S. EPA have established health advisory

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MCX SPE workflow isolating beta blocker drugs from plasma samples

Selective Extraction of Beta-Blockers from Plasma with MCX SPE

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Selective Extraction of Beta-Blockers from Plasma with MCX SPE 1. Analytical Importance of Beta-Blockers in Pharmacokinetic Studies Beta-blockers are a class of medications widely prescribed for cardiovascular conditions such as hypertension, angina, and heart failure. In pharmacokinetic (PK) studies, accurate quantification of beta-blockers in plasma is critical for understanding drug absorption, distribution, metabolism, and excretion.

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HLB SPE cartridge extraction of antidepressant residues from wastewater samples

Quantifying Antidepressants in Wastewater Using HLB SPE

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Introduction The widespread use of antidepressants—particularly selective serotonin reuptake inhibitors (SSRIs) and serotonin-norepinephrine reuptake inhibitors (SNRIs)—has led to their ubiquitous detection in municipal wastewater. These compounds, often only partially metabolized in the human body, are excreted as parent drugs and active metabolites, entering wastewater treatment plants (WWTPs) through domestic sewage. Despite treatment processes, many antidepressants

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SPE extraction of pollutants from air particulate filter samples

SPE Isolation of Organic Contaminants from Air Particulate Samples

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Airborne particulate matter (PM) is a complex matrix containing a wide range of organic contaminants, including polycyclic aromatic hydrocarbons (PAHs) and volatile organic compound (VOC) derivatives. Solid-phase extraction (SPE) has become a routine technique for isolating these analytes prior to gas chromatography-mass spectrometry (GC-MS) analysis. This blog covers a complete workflow: from filter collection to

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SPE cartridge removing lipids from fatty food extracts before analysis

SPE Cleanup of Fat-Rich Food Samples for LC-MS Analysis

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Challenges of Lipid-Rich Food Matrices Fat-rich food samples such as oils, butter, cheese, nuts, and fatty meats present significant challenges for LC-MS analysis. The high lipid content, primarily triglycerides, can cause ion suppression, column fouling, and poor reproducibility. Lipids co-extract with target analytes during sample preparation, leading to matrix effects that compromise sensitivity and accuracy.

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SPE extraction of dye contaminants from textile wastewater

SPE Extraction of Dye Compounds from Textile Wastewater

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Textile Dye Pollution in Industrial Wastewater The textile industry is one of the largest consumers of water, generating massive volumes of wastewater contaminated with synthetic dyes. These dyes are designed to resist degradation, leading to persistent environmental pollution. Many dye compounds are toxic, mutagenic, and carcinogenic, posing serious risks to aquatic ecosystems and human health.

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SPE purification of bioactive peptides from fermented food samples

SPE Isolation of Bioactive Peptides from Fermented Foods

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Bioactive Peptides in Fermented Food Products Fermented foods such as cheese, yogurt, kefir, kimchi, and soy sauce are rich sources of bioactive peptides—short amino acid sequences released during fermentation by microbial proteases. These peptides exhibit diverse health-promoting activities including antihypertensive, antioxidant, antimicrobial, and immunomodulatory effects. However, isolating these peptides from complex food matrices poses significant

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SPE extraction of pharmaceutical residues from drinking water

SPE Method for Detecting Pharmaceutical Residues in Drinking Water

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SPE Method for Detecting Pharmaceutical Residues in Drinking Water 1. Pharmaceutical Contamination in Drinking Water Sources Pharmaceutical residues in drinking water have emerged as a significant environmental and public health concern. Traces of antibiotics, analgesics, hormones, and antidepressants are commonly detected in surface water, groundwater, and even treated tap water. These compounds enter water bodies

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