DryDisk® Disks & Barrels

This application note demonstrates recoveries of all the analytes within tables 1–2 of EPA method 625.1 (plus a few analytes from table 3) obtained using the Biotage® Horizon 5000 with Atlantic® 8270 One Pass solid phase extraction disks, 8270 Carbon Cartridges Max-Detect cartridges, and 1.0 Micron Atlantic® Fast Flow Pre-Filters for analyte extraction. The DryDisk® Solvent Drying System and the TurboVap® II are used for solvent drying and concentration and analysis is by GC-MS.
Tags: Application Notes, Disk, English, Environmental, GC-MS, SVOC, Semi-Volatile Organics, US EPA Method 625, Waste water

This application note will outline optimized methods for the extraction of polycyclic aromatic hydrocarbons from sea water using Atlantic® HLB solid phase extraction disk processed using Biotage automated or manual SPE solutions and DryVap® Concentrator System. The first section will highlight the use of the Biotage® Horizon 5000 fully automated extraction system and the method used for this application. Additionally, there will be an Application Modification section that will highlight the use of the Biotage® Horizon 4790 (with data and discussion) and Biotage® VacMaster™ Disk for this application.
Tags: 4790, Application Notes, Disk, English, Environmental, GC-MS, PAHs, Polyaromatic Hydrocarbons (PAH), Sea Water

Method 1668A is used for determining the level of chlorinated biphenyl congeners by high resolution gas chromatography with high resolution mass spectrometry (HRGC/HRMS). For aqueous samples (samples containing less than 1% solids) – Stable isotopically labelled analogs of the toxic PCB’s are spiked into a 1L sample, and the sample is extracted using the Biotage® Horizon 4790 Automated Extraction System along with the Atlantic™ C18 solid phase extraction (SPE) disk. Samples are then dried and concentrated using the DryVap® Automated Drying and Concentrating System with DryDisk® technology.
Tags: 4790, Application Notes, EPA 1668A Analytes, English, Environmental, GC-MS, PCBs, Water

Method 1657 describes the procedure to determine low ppb levels of organophosphorus pesticides in municipal and industrial wastewater. The City of Fort Worth Water Department implemented Automated SPE for the analysis of organophosphorous pesticides by EPA Method 1657, using the Atlantic™ C18 solid phase extraction disk. The Biotage® Horizon 4790 Automated Extraction System with Envision® Platform controller, and the DryVap® Automated Drying and Concentration System were used in this application note.
Tags: 4790, Application Notes, Azinphos methyl, Chlorpyrifos, Demeton (O&S), Diazinon, Disk, Disulfoton, EPA 1657 Analytes, EPN, English, Environmental, Ethion, Ethyl parathion, GC-FPD, Malathion, Methyl parathion, Organophosphate Pesticide, Waste water

This study shows that the Biotage® 4790 Automated Extractor system, along with the Atlantic™ DVB disk, the DryDisk® separation membrane, and the DryVap® Concentrator System can be successfully used to analyze for Nonyl Phenol and Bisphenyl A in water samples. This sample preparation process is fully automated, requiring minimal human intervention, and allowing for reductions in sample processing costs.
Tags: 5000, Application Notes, Bisphenol A, Disk, Drinking water, Endocrine disrupter, English, Environmental, Environmental contaminants, GC-MS, Nonyl phenol, Water

Hexane extractable material (HEM), also known as Oil & Grease extraction is a simple water quality measurement. The measurement can be used to assess pollution for compliance or as a measure of influent contamination to protect a waste treatment plant from levels that might cause malfunction.
Tags: 5000, Application Notes, Disk, English, Hexane Extractable Material, Oil & Grease, Petroleum, Water

Drinking water is a significant source of environmental exposure, especially for small children. Countries around the world have put regulations in place to monitor drinking water quality for a wide range of hazardous compounds. Methods such as SL 392-2007 in China, the EN methods in Europe and US methods such as method 525.2 cover a large suite of analytes of concern. They can be effectively extracted using solid phase extraction (SPE) disks and using GC/MS for detection.
Tags: 5000, Application Notes, Chinese Method SL-392-2007, Disk, Drinking water, English, Environmental, GC-MS, Semi-Volatile Organics

Although not frequently a problem, recent incidents at sea have led to large amounts of crude oil being released and dispersed throughout the Gulf of Mexico, such as in the Deepwater Horizon Gulf oil spill of 2010. Originally presumed to be Louisiana Sweet Crude, sample testing later revealed a harsher form of crude containing a high amount of asphaltenes was actually being released.
Tags: 4790, Application Notes, Diesel Range Organics, Disk, English

The focus of this Application Note is to illustrate some of the advances which have been made when performing EPA method 525.2 when using Solid Phase Extraction (SPE). It will make use of the Biotage(r) Horizon SmartPrep Automated Cartridge Extraction system set up to run in Bottle Rinse Mode with 6 mL SPE cartridges.
Tags: Application Notes, Column, Drinking water, EPA 525.2 Analytes, EPA 525.2 Analytes, English, Environmental, GC-MS, SmartPrep, US EPA Method 525.2

Laboratories which take in a high volume of aqueous samples will know that every sample is different. Samples can contain varying amounts of suspended particulates and/or sediment due to either the source of the water, or the collection technique. Still other samples may form precipitates under elevated pH conditions resulting in emulsions. These types of samples have historically proven very challenging when using solid phase extraction (SPE).
Tags: 4790, Application Notes, Disk, English, Environmental, GC-MS, SVOC, Semi-Volatile Organics, US EPA Method 3535A, Water

Oftentimes, aqueous samples collected contain varying amounts of suspended solids or sediment strictly due to either the source of the water being sampled or improper sampling techniques. In any circumstance, samples with high amounts of particulates or sediment have proven challenging to extract using EPA Method 3535 Solid Phase Extraction (SPE).
Tags: 4790, Application Notes, Aqueous, Disk, English, Environmental, GC-MS, SVOC, Semi-Volatile Organics, US EPA Method 3535A

The purpose of this application note is to establish a solid phase extraction (SPE) procedure to streamline the sample preparation process for determining organochlorine pesticides from water.
Tags: 4790, Application Notes, Disk, English, Environmental, GC-MS, Organochlorine pesticides (OCP), Pesticides, US EPA Method 8081, Water

Although not frequently a problem, recent incidents at sea have led to large amounts of crude oil being released and dispersed throughout the Gulf of Mexico. Originally presumed to be Louisiana Sweet Crude, sample testing later revealed a harsher form of crude containing a high amount of asphaltenes was actually being released. The differences are substantial, as Louisiana Sweet degrades more readily in nature than crude oil containing asphaltenes.
Tags: 4790, Application Notes, Disk, English, Environmental, GC-MS, PAHs, Polyaromatic Hydrocarbons (PAH), Sea Water

The purpose of this application note is to demonstrate the capabilities of the automated Horizon Technology solution when used for the analysis of EPA method 8061A phthalate ester compounds in surface and ground water. Method 8061A states gas chromatography/mass spectrometry (GC/MS) can be used as an alternative for compound confirmation for phthalate esters.
Tags: 4790, Application Notes, Disk, EPA 8061A Analytes, English, Environmental, GC-MS, Ground water, Phthalates, Phthalic acid esters, Surface water

At present, pollution of freshwater algae has become aglobal environmental problem. Of all the different pollution types, microcystin LR is the most toxic and the most acute hazard as far as is known presently
Tags: 4790, Application Notes, English, Environmental, HPLC, Micocystins, Water

The City of Fort Worth, Water Department conducted an evaluation of the Atlantic™ solid phase extraction (SPE) C18 disks using EPA Method 608. This application note describes the procedure to determine low ppb levels of organochlorine pesticides and PCBs in wastewater. This procedure used methylene chloride as the primary extraction solvent, followed by a hexane solvent exchange. Extracts were then analyzed by GC/ECD using a pressure pulse injection technique.
Tags: 4,4,DDD, 4790, Aldrin, Application Notes, DDE, Disk, EPA 608 Analytes, Endosulfan, Endosulfan sulfate, Endrin, Endrin Aldehyde, Endrin Ketone, English, Environmental, GC/ECD, Heptachlor, Heptachlor epoxide, Methoxychlor, Organochlorine pesticides (OCP), Organochlorines, PCB, PCB1016, PCB1260, PCBs, TCMX, US EPA Method 608.3, Waste water, α-BHC, β-BHC, γ-BHC, δ-BHC

EPA Method 608 describes the procedure to determine low parts per billion levels of organochlorine pesticides, polychlorinated biphenyls, toxaphene and chlordane in wastewater. The laboratory that collected the data presented in this application note uses EPA method 608 ATP3M0222 as the approved SPE technique for waste water extraction. The disks compared in this study are : “Certified for Automation” Atlantic™ C18 (47 mm) and 3M Empore™ High Performance Extraction Disk C18 (47 mm). Comparisons were made using side-by-side extraction and identical calibration parameters.
Tags: 4,4,DDD, 4790, Aldrin, Application Notes, DDE, Dieldrin, EPA 608 Analytes, Endosulfan, Endosulfan sulfate, Endrin, Endrin Aldehyde, Endrin Ketone, English, Environmental, GC/ECD, Heptachlor, Heptachlor epoxide, Methoxychlor, Organochlorine pesticides (OCP), PCB, PCB1016, PCB1260, PCBs, TCMX, Waste water, α-BHC, β-BHC, γ-BHC, δ-BHC

Effective removal of residual water from organic solvents is critical to achieve optimal recoveries for water soluble compounds. Sodium sulfate has been the standard technique for removing residual water from solvent extracts for many years; however, it has several major drawbacks. Water soluble analytes in the residual water phase can become adsorbed in the sodium sulfate, leading to lower recoveries.
Tags: Application Notes, Disk, English, Environmental, GC-MS, Organic Compounds, Water

The analysis of pesticides for environmental extracts typically requires a solvent exchange from dichloromethane (DCM) to an ECD compatible solvent such as nhexane. The prescribed method of solvent exchange and concentration is given in EPA Method 3510 and uses a Kudera-Danish(KD) apparatus to achieve the results.
Tags: Application Notes, Disk, English, Environmental, GC-MS, Solvent Exchange, Water

In this study, the effectiveness of the Atlantic™ DVB SPE Disk in extracting organochlorine pesticides from water samples was investigated, and an optimized method of extraction developed.
Tags: 4,4,DDD, Aldrin, Alpha-Chlordane, Application Notes, DDD, DDE, DDT, Dieldrin, Disk, EPA 8081 Analytes, Endosulfan, Endosulfan sulfate, Endrin, Endrin Aldehyde, Endrin Ketone, English, Environmental, Heptachlor, Heptachlor epoxide, Methoxychlor, Organochlorine pesticides (OCP), US EPA Method 8081, Water, α-BHC, β-BHC, γ-BHC, δ-BHC

EPA Method 1657 describes the procedure to determine low ppb levels of organophosphorous pesticides in wastewater. The disks compared in this study are: “Certified for Automation” Atlantic™ C18 (47 mm) and 3M Empore™ High Performance Extraction Disk C18 (47 mm).
Tags: 4790, Application Notes, Azinphos methyl, Chlorpyrifos, Demeton (O&S), Diazinon, Disk, Disulfoton, EPA 1657 Analytes, EPN, English, Environmental, Ethion, Ethyl parathion, GC-FPD, Malathion, Methyl parathion, Organophosphate Pesticide, Waste water

The purpose of this application note is to demonstrate the use of a fully automated solid phase extraction (SPE) and concentration system that provides fast sample preparation while improving the quality and consistency of results for the Total Petroleum Hydrocarbon (TPH) compounds from C10 to C40 as dictated by EPA Method 8015.
Tags: 4790, Application Notes, Disk, EPA 8015 Analytes, EPA 8015 analytes, English, Environmental, GC-FID, Ground water, Hexane Extractable Material, Surface water, Total Petroleum Hydrocarbons (TPH, SGT-HEM), US EPA Method 8015

EPA Method 525.2 describes the procedure to determine low ppb levels of semi-volatile organic material in drinking water using solid phase extraction (SPE) or liquid-solid extraction (LSE) techniques. The extraction solvents are methylene chloride and ethyl acetate. Extracts are analyzed by GC/MS using a splitless injection technique.
Tags: 2,4-D, 245-T, ACIFLUORFEN, Application Notes, BENTAZON, Bentazone, Chlorinated acids, DCPA, MONO ACID, DCPAA-SS, DINOSEB, Dicamba, Disk, Drinking water, English, Environmental, GC/ECD, PCP, PICLORAM, SILVEX

EPA Method 506 is used to determine Phthalate and Adipate Esters in drinking water. The analytes are extracted from water using a Horizon Technology 47 mm Atlantic C18 disk. The disk is extracted with Acetonitrile and Methylene Chloride. The extract is then dried and concentrated to a final volume of 1.0 mL using the Horizon Technology DryVap® with DryDisk® technology. Final analysis is by GC/PID.
Tags: Adipate esters, Application Notes, Disk, EPA 506 Analytes, English, Environmental, Phthalates, Phthalic acid esters

Tags: Certificates

The DryDisk® 50 mL Barrel (PN 49-2486-01) is a disposable sample preparation device that provides a fast and simple approach for removing residual water from non-polar solvents. The DryDisk membrane replaces the conventional sodium sulfate (Na2SO4) drying technique.
Tags: Manuals & User Guides

Removing water with a membrane rather than the older technique of passing the solvent through a column of sodium sulfate (Na2SO4) brings several advantages. The most important analytically is that the membrane will not adsorb analytes or contaminate the extract with matrix or other potential interferences.
Tags: Manuals & User Guides, Product Notes

The DryDisk membrane drying system provides advantages for removing water from nonpolar solvents, important in protecting the chromatograph in the analysis step, especially critical in protecting GC and GC/MS.
Tags: Product Notes

Removing water with a membrane rather than the older technique of passing the solvent through a column of sodium sulfate (Na2SO4) brings several advantages. The most important analytically is that the membrane will not adsorb analytes or contaminate the extract with matrix or other potential interferences.
Tags: Manuals & User Guides, Product Notes

Within each disk holder there is a support screen. The disk holders that we will cover are used with a broad range of Horizon products. The placement and condition of the support screen is critical to the functioning of these products.
Tags: Tech Tips