712 Results for: "GC STANDARDS"

Supplier: TCI America

[Standard Material for GC] CAS Number: 112-88-9 MDL Number: MFCD00009003 Molecular Formula: C18H36 Molecular Weight: 252.49 Purity/Analysis Method: 99.5% (GC) Form: Clear Liquid Color: Colorless Boiling point (°C): 179 Flash Point (°C): 149 Freezing point (°C): 16 Specific Gravity (20/20): 0.79

Supplier: TCI America

[Standard Material for GC] CAS Number: 629-50-5 MDL Number: MFCD00008979 Molecular Formula: C13H28 Molecular Weight: 184.37 Purity/Analysis Method: 99.5% (GC) Form: Clear Liquid Color: Colorless Boiling point (°C): 235 Flash Point (°C): 79 Freezing point (°C): -6 Specific Gravity (20/20): 0.76

Supplier: TCI America

[Standard Material for GC] CAS Number: 111-82-0 MDL Number: MFCD00008966 Molecular Formula: C13H26O2 Molecular Weight: 214.35 Purity/Analysis Method: 99.5% (GC) Form: Clear Liquid Color: Colorless Boiling point (°C): 262 Melting point (°C): 5 Flash Point (°C): 134 Specific Gravity (20/20): 0.87

Supplier: TCI America

[Standard Material for GC] CAS Number: 544-76-3 MDL Number: MFCD00008998 Molecular Formula: C16H34 Molecular Weight: 226.45 Purity/Analysis Method: 99.5% (GC) Form: Clear Liquid Color: Colorless Boiling point (°C): 287 Flash Point (°C): 136 Freezing point (°C): 17 Specific Gravity (20/20): 0.77

Supplier: TCI America

[Standard Material for GC] CAS Number: 124-10-7 MDL Number: MFCD00008983 Molecular Formula: C15H30O2 Molecular Weight: 242.40 Purity/Analysis Method: 99.5% (GC) Form: Clear Liquid Color: Colorless Boiling point (°C): 173 Flash Point (°C): 157 Freezing point (°C): 18 Specific Gravity (20/20): 0.87

Supplier: TCI America

[Standard Material for GC] CAS Number: 2437-56-1 MDL Number: MFCD00008976 Molecular Formula: C13H26 Molecular Weight: 182.35 Purity/Analysis Method: 99.5% (GC) Form: Clear Liquid Color: Colorless Boiling point (°C): 233 Flash Point (°C): 79 Freezing point (°C): -13 Specific Gravity (20/20): 0.77

Supplier: Aladdin Scientific

Ethyl 5-amino-1-phenyl-4-pyrazolecarboxylate is a heterocyclic building block.Ethyl 5-amino-1-phenyl-4-pyrazolecarboxylate may be used as internal standard for the GC-MS determination of etomidate [ethyl-1-(1-phenylethyl)-1H-imidazole-5-carboxylate] in mouse brain tissue.

Supplier: TCI America

[Standard Material for GC] CAS Number: 301-00-8 MDL Number: MFCD00135851 Molecular Formula: C19H32O2 Molecular Weight: 292.46 Purity/Analysis Method: 98.0% (GC) Form: Clear Liquid Color: Colorless Boiling point (°C): 347 Flash Point (°C): 113 Specific Gravity (20/20): 0.90 Storage Temperature: 0-10°C

Supplier: New England Biolabs (NEB)

The Phusion High-Fidelity PCR Kit (large) contains a sufficient supply of Phusion High-Fidelity DNA Polymerase, Phusion HF and GC Buffers, deoxynucleotides, magnesium chloride, DMSO, and DNA size standard to perform 200 reactions

Supplier: TCI America

[Standard Material for GC] CAS Number: 112-63-0 MDL Number: MFCD00009534 Molecular Formula: C19H34O2 Molecular Weight: 294.48 Purity/Analysis Method: 98.0% (GC) Form: Clear Liquid Color: Colorless Boiling point (°C): 346 Melting point (°C): -35 Flash Point (°C): 200 Specific Gravity (20/20): 0.89 Storage Temperature: 0-10°C

Supplier: Aladdin Scientific

α-Terpineol is a monoterpene alcohol. It is one of the components responsible for the antifungal activity in Melaleuca alternifolia (tea tree) essential oil.[1] The reaction rate constant of α-terpineol with the OH radical and ozone was found to be (1.9±0.5)×10-10cm3 molecule-1s-1 and (3.0±0.2)×10-16cm3 molecule-1s-1, respectively.Application:α-Terpineol has been used as a reference standard for the identification of α-terpineol in tequila by solid phase microextraction (SPME) and capillary gas chromatography−mass spectrometry (GC-MS), and in virgin olive oil samples by headspace SPME followed by GC-MS equipped with flame ionization detector (FID).It may be used as a reference standard for the analysis of α-terpineol as trace volatile compound in wine by solid-phase extraction (SPE) followed by GC-MS and in essential oils and related compounds from aromatic plants by SPME and GC-MS.α-Terpineol may be used in the synthesis of α-terpinyl esters of acetic acid and acetic anhydride via lipase-mediated esterification.

Supplier: SPEX CERTIPREP LLC

Consumer Safety Standards
Analytical Standards for Wine

Wine is a complex combination of water, alcohol and other substances such as organic acids, phenols, sugars, carbon dioxide, and sulfur dioxide. The chemical interactions of these compounds, combined with the aging process, determine the quality of the color, taste and aroma of the wine. However, during this process, the chemical interactions can also play key roles in spoiling the wine. For instance, cork taint transpires when naturally occurring airborne fungi are in the presence of chlorophenol compounds to form 2,4,6-trichloranisole (TCA) in the wine. When this occurs, the wine’s aroma is reduced significantly and is replaced by an undesirable smell and taste.

To help regulate the spoilage of wine, the wine industry tests for several compounds that are known to cause this. For this industry, SPEX CertiPrep offers Certified Reference Materials (CRMs) for wine that are designed for GC, GC/MS, HPLC and LC/MS analysis. These standards are manufactured from the highest purity starting materials and the highest grade of solvents available in order to guarantee superior quality. Each standard is supplied with a detailed comprehensive Certificate of Analysis.

Supplier: SPEX CERTIPREP LLC

Pesticides, PCBs and Herbicides

The EPA is tasked with the monitoring of environmental systems as they pertain to contamination and human health. The methods issued by the EPA are created to respond to specific toxins or persistent organic pollutants (POPs) found in environmental samples such as soil, source water, drinking water, and waste. In particular, pollutants such as polychlorinated biphenyls (PCBs), which were in widespread industrial use up until their restriction, are of concern due to their stable and persistent nature in the environment. Another group of chemicals of high concern is the hundreds of commercial pesticides and herbicides in use in the world today. Pesticides, from algaecides to virucides, are used in large quantities in industrial and private agriculture. The concern over human pesticide exposure over the past few decades has led to extensive monitoring of these pesticides. It has been reported that over 98% of insecticides and 95% of herbicides affect areas other than their intended target product. It is essential that monitoring agencies have accurate standard mixes to measure the pesticide levels in the environment.

Many new pesticides are now being tested using highly sensitive LC/MS techniques, in addition to traditional GC techniques, to determine minute amounts of residue in environmental samples and food products.

At SPEX CertiPrep, we facilitate ease of monitoring and testing of pesticides by creating pesticide test mixes to suit your monitoring needs. SPEX CertiPrep is the leader in offering pesticide standards designed to work within EPA, AOAC and FDA analytical testing methods using all of the leading analytical techniques: LC, LC/MS, GC, and GC/MS. Many pesticide standard mixes are readily available in our catalog along with a large list of single pesticide standards. In addition, custom pesticide mixes can be made to your specifications to create a mix that meets your needs.

US EPA Method 8082 is an analytical method for the monitoring of PCBs in environmental samples by GC/ECD or GC/ELCD

Supplier: SPEX CERTIPREP LLC

Pesticides, PCBs and Herbicides

The EPA is tasked with the monitoring of environmental systems as they pertain to contamination and human health. The methods issued by the EPA are created to respond to specific toxins or persistent organic pollutants (POPs) found in environmental samples such as soil, source water, drinking water, and waste. In particular, pollutants such as polychlorinated biphenyls (PCBs), which were in widespread industrial use up until their restriction, are of concern due to their stable and persistent nature in the environment. Another group of chemicals of high concern is the hundreds of commercial pesticides and herbicides in use in the world today. Pesticides, from algaecides to virucides, are used in large quantities in industrial and private agriculture. The concern over human pesticide exposure over the past few decades has led to extensive monitoring of these pesticides. It has been reported that over 98% of insecticides and 95% of herbicides affect areas other than their intended target product. It is essential that monitoring agencies have accurate standard mixes to measure the pesticide levels in the environment.

Many new pesticides are now being tested using highly sensitive LC/MS techniques, in addition to traditional GC techniques, to determine minute amounts of residue in environmental samples and food products.

At SPEX CertiPrep, we facilitate ease of monitoring and testing of pesticides by creating pesticide test mixes to suit your monitoring needs. SPEX CertiPrep is the leader in offering pesticide standards designed to work within EPA, AOAC and FDA analytical testing methods using all of the leading analytical techniques: LC, LC/MS, GC, and GC/MS. Many pesticide standard mixes are readily available in our catalog along with a large list of single pesticide standards. In addition, custom pesticide mixes can be made to your specifications to create a mix that meets your needs.

US EPA Method 508 is an analytical method for the monitoring of organochlorine pesticides and PCBs in drinking water and ground water by GC/ECD

Supplier: SPEX CERTIPREP LLC

Pesticides, PCBs and Herbicides

The EPA is tasked with the monitoring of environmental systems as they pertain to contamination and human health. The methods issued by the EPA are created to respond to specific toxins or persistent organic pollutants (POPs) found in environmental samples such as soil, source water, drinking water, and waste. In particular, pollutants such as polychlorinated biphenyls (PCBs), which were in widespread industrial use up until their restriction, are of concern due to their stable and persistent nature in the environment. Another group of chemicals of high concern is the hundreds of commercial pesticides and herbicides in use in the world today. Pesticides, from algaecides to virucides, are used in large quantities in industrial and private agriculture. The concern over human pesticide exposure over the past few decades has led to extensive monitoring of these pesticides. It has been reported that over 98% of insecticides and 95% of herbicides affect areas other than their intended target product. It is essential that monitoring agencies have accurate standard mixes to measure the pesticide levels in the environment.

Many new pesticides are now being tested using highly sensitive LC/MS techniques, in addition to traditional GC techniques, to determine minute amounts of residue in environmental samples and food products.

At SPEX CertiPrep, we facilitate ease of monitoring and testing of pesticides by creating pesticide test mixes to suit your monitoring needs. SPEX CertiPrep is the leader in offering pesticide standards designed to work within EPA, AOAC and FDA analytical testing methods using all of the leading analytical techniques: LC, LC/MS, GC, and GC/MS. Many pesticide standard mixes are readily available in our catalog along with a large list of single pesticide standards. In addition, custom pesticide mixes can be made to your specifications to create a mix that meets your needs.

US EPA Method 531 is an analytical method for the monitoring of n-methylcarbamoyloximes and n-methylcarbamates in drinking water and ground water by HPLC and a fluorescence detector

Supplier: MP Biomedicals

Decane (n-Decane), an aliphatic hydrocarbon, is a reference fuel. Its oxidation over a range of temperature has been studied. Its crystal structure has been investigated at 150K. The cracking of decane can be performed using electrohydrodynamic atomization system (EHDA).
Decane has been used as a solvent in the preparation of high alkane phase emulsified suspensions (HAPES). It may also be used as a solvent to suspend the CdSe/ZnS nanocrystals during absorbance measurement. Internal standard in the GC analysis of oxalic, malonic, and succinic acids in biological materials.

Supplier: Thermo Scientific

Choose Thermo Scientific™ SureSTART™ 2 ml glass screw top vials, performance level 2, to ensure high quality data with an uninterrupted workflow in high-throughput applications using GC, HPLC/UHPLC, and single or triple quadrupole MS systems. Use level 2 vials for routine QA/QC applications, where the analyte levels are achievable or close to the method detection level. Available in clear and amber glass, these 2 ml screw top vials have very low metal content, extractables, and leachables and conform to high standards so that you can to meet your regulatory requirements. They are specification certified to ensure their physical dimensions and autosampler compatibility.

Supplier: SPEX CERTIPREP LLC

US EPA method 8061 is an analytical method for the monitoring of phthalate esters in aqueous and solid samples by GC/MS or GC/ECD.

Supplier: SPEX CERTIPREP LLC

Semivolatiles US EPA method 625 is an analytical method for the monitoring of acid and base neutral extractable fractions in municipal and industrial wastewater by GC/MS. US EPA method 8270 is a general analytical method for the monitoring of semivolatiles in environmental and waste samples by GC/MS.

Supplier: SPEX CERTIPREP LLC

US EPA method 603 is a general analytical method for the separation of acrolein and acrylonitrile in municipal and industrial wastewater by GC/FID.

Supplier: Restek

These high molecular weight hydrocarbon waxes are useful for simulated distillation and other high-temperature GC work.

Supplier: Cayman Chemical Company

A mixture of phytocannabinoids in an acetonitrile solution intended for HPLC-UV or LC- or GC-MS

Supplier: Cayman Chemical Company

A mixture of phytocannabinoids in an acetonitrile solution intended for HPLC-UV or LC- or GC-MS

Supplier: Cayman Chemical Company

A mixture of phytocannabinoids in a methanol solution intended for HPLC-UV or LC- or GC-MS

Supplier: SPEX CERTIPREP LLC

Volatiles, US EPA method 602 is a general analytical method for the monitoring of halogenated aromatic compounds in municipal and industrial wastewater by GC/PID.

Supplier: Cayman Chemical Company

A mixture of phytocannabinoids in an acetonitrile solution intended for HPLC-UV or LC- or GC-MS

Supplier: Cayman Chemical Company

A mixture of phytocannabinoids in an acetonitrile solution intended for HPLC-UV or LC- or GC-MS

Supplier: Cayman Chemical Company

A mixture of phytocannabinoids in an acetonitrile solution intended for HPLC-UV or LC- or GC-MS

Supplier: Cayman Chemical Company

A mixture of phytocannabinoids in an acetonitrile solution intended for HPLC-UV or LC- or GC-MS

Supplier: SPEX CERTIPREP LLC

US EPA method 8270 is a general analytical method for the monitoring of semivolatiles in environmental and waste samples by GC/MS.