1026 Results for: "UV Standards"

Supplier: FIREFLYSCI, INC.

Two windows polished.

Supplier: Epredia

Specifically designed for HEMATRAK and Micro 21 automated differential systems

Supplier: Teknova

Reagent Grade Water meets the standard for ASTM TYPE with a resistance of 18 megaohms then purified by glass distillation, ion exchange, a charged carbon adsorption column and undergoes reverse osmosis, UV treatment and sterile-filtration with 0.1 micron filter.

Supplier: Rockland Immunochemical

Dog IgG Whole Molecule

Supplier: MCR Safety

The Klondike® Plus Magnifier features modern ratchet style combined with excellent fit, comfort, and adjustability.

Supplier: Thermo Fisher Scientific

These tubes are low DNA binding, ensuring minimal sample loss, and free from PCR inhibitors, UV leachables, and human DNA, making them ideal for sensitive applications. Furthermore, the Sustain Series are sustainable – with biobased resin and ISCC certification, underscoring their eco-friendly design. The standard DNA low binding tubes ensure minimal sample loss, and free from PCR inhibitors, UV leachables, and human DNA, making them ideal for sensitive applications.

Supplier: Aladdin Scientific

Atorvastatin Calcium, off white crystalline powder. It is a synthetic selective inhibitor of HMG-CoA reductase. It is insoluble in aqueous solution with pH below 4 and is freely soluble in methanol.It was used as standard in the method development and validation for simultaneous determination of Atorvastatin calcium and Ezetimibe in tablets using UV spectrophotometric, HPLC and HPTLC methods.

Supplier: Restek

EPA method 8330 is used to measure explosives residues in water and soil samples, using HPLC with UV detection. Target analytes are nitroaromatic and nitramine explosives and their degradation products. Obtaining pure, neat compounds for Method 8330 reference standards can be very difficult. To ensure the highest quality standards, Restek's Quality Control (QC) lab confirms the identity and purity of mixture components and solvents using one or more of the following techniques: GC-FID, HPLC, GC-ECD, GC-MS, LC-MS, refractive index, and melting point.

Supplier: Restek

EPA method 8330 is used to measure explosives residues in water and soil samples, using HPLC with UV detection. Target analytes are nitroaromatic and nitramine explosives and their degradation products. Obtaining pure, neat compounds for Method 8330 reference standards can be very difficult. To ensure the highest quality standards, Restek's Quality Control (QC) lab confirms the identity and purity of mixture components and solvents using one or more of the following techniques: GC-FID, HPLC, GC-ECD, GC-MS, LC-MS, refractive index, and melting point.

Supplier: Adipogen

Unnatural amino acid derivative. Pharmacological tool and potential chiral building block used as an internal standard for amino acid analysis. Suitable reagent used for the differentiation of beta-N-methylamino-L-alanine from the diamino acids by using HPLC-FD, UHPLC-UV, UHPLC-MS, and triple quadrupole tandem mass spectrometry (UHPLC-MS/MS). Used in the quantification of neurotoxin beta-N-methylamino-L-alanine (BMAA) in seafood. It has been found to inhibit GABA transaminase (ABAT), producing elevated levels of GABA and to have an antitumor activity.

Supplier: United Product & Instrument

Wards® UV/VIS Spectrophotometer is the perfect solution for your classroom or laboratory when ultraviolet and visible analysis is a must! Built-in software offers wavelength scanning, as well as a large 4-line LCD display that can be read from any angle. The touch buttons make commanding easy and data entry quick and convenient. The menu is task driven and makes your spectrophotometer very user-friendly. A large on-board memory is capable of storing 200 test methods (standard curves) and saving up to 500 test data. Each unit comes standard with both USB and RS-232 data ports for communication. Two optional features make documentation and reporting a snap; optional software for PCs which includes scanning capability. The USB port can be used for both data transfer and software upgrades. The optional Windows® XP based software expands the capabilities of the instrument including Standard Cuvettes, Kinetics, Abs. & %T, DNA/Protein ratio and wavelength scanning. Data can be easily exported to Excel® for further processing, analysis and storage.

Supplier: MP Biomedicals

Thymidine is a nucleoside composed of deoxyribose (a pentose sugar) joined to the pyrimidine base thymine.Deoxythymidine can be phosphorylated with one, two or three phosphoric acid groups, creating respectively dTMP, dTDP or dTTP (deoxythymidine mono- di- or triphosphate.It exists in solid form as small white crystals or white crystalline powder.The stability of deoxythymidine under standard temperature and pressure (STP) is very high.Thymidine is listed as a chemical teratogen.
Mainly used in forming hybrid cell lines wherein cells are incubated in HAT medium(hypoxanthine-aminopterin-thymidine medium) to give rise to monoclonal antibodies. Use in HT and HAT cocktails for hybridoma fusion, selection and cloning.
Physical Appearance: White Powder
Optical Rotation: (c=1, water) +17.5 - +19.5°
UV/Visible Absorbance: λmax (0.1N HCl) 266 - 268 nm
Solubility: Soluble in water, methanol, hot alcohol, hot acetone, hot ethyl acetate pyridine, glacial acetic acid and HCl (20 mg/mL-clear, colorless solution); sparingly soluble in hot chloroform

Supplier: FIREFLYSCI, INC.

Firefly's upgraded and improved version of the NIST-2031 UV/VIS photometric accuracy kit.

Supplier: PerkinElmer

Holmium oxide glass filter for checking the wavelength accuracy of a UV/Vis or UV/Vis/NIR spectrometer.

Supplier: Cayman Chemical Company

A Certified Reference Material cintaining a mixture of phytocannabinoids in an acetonitrile solution intended for HPLC-UV or LC- or GC-MS applications

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: 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: United Product & Instrument

Wards® Visible Spectrophotometers are perfect for your classroom or laboratory. The easy-to-use 1208 and 1204 are ideal for any standard application, while staying within a conservative budget. They have a high quality silicon photodiode detector and 1200 lines/mm diffraction grating that assures high performance, as well as a large digital display and built-in, automatic filters for easy operation. These spectrophotometers feature Absorbance, Transmittance, Factor and Concentration modes, as well as automatic zeroing and blanking with the touch of a single button. The 1208 and 1204 visible spectrophotometers feature both USB and RS-232C ports for data transfer and you can select optional Windows® based software for easy data collection and application expansion to standard curve and kinetics, Abs. and %T. Data can be easily exported to Microsoft Excel® for further processing, analysis and storage. Software can be used with Windows® 2000, ME, and XP. Bulb changes are quick and easy when needed and require no tools, or alignment. The large sample compartment can accept cuvettes up to 50 mm path length and can accept a variety of optional accessories.

Supplier: United Product & Instrument

The 1100RS Visible Spectrophotometer features an accurate 10nm bandpass model and is designed for use with ¹/₂" (13 mm) round tubes or 10mm square cuvettes and is perfect for most laboratory/classroom applications. An adapter is supplied at no additional charge for 10 mm square optical glass cuvettes. The high quality silicon photodiode detector and 1200 lines/mm grating assures high performance. Auto zero function, one-touch blanking and built-in, automatic filters allow for easy operation. The large digital display allows for quick and easy readings. This visible spectrophotometer works with optional Windows® based software for easy data collection and application expansion to Standard Curve and Kinetics, Abs. and %T and Concentration, etc. Data can be easily exported to Microsoft Excel® for further processing and analysis. The software is designed for Windows based PCs using Windows® 2000, ME, or XP. A USB and RS-232 port is available on this spectrophotometer as well as Absorbance, Transmittance, Concentration (C) and Factor (F) modes. Each mode can be quickly selected with the touch of a button.

Supplier: SPEX CERTIPREP LLC

US EPA method 8310 is an analytical method for the monitoring of PNA hydrocarbons in groundwater and waste samples by HPLC using UV and fluorescence detectors.

Supplier: LGC Standards

TRC UV-320

Supplier: FIREFLYSCI, INC.

Broad range solid-state standard kit for checking photometric accuracy, wavelength accuracy and stray light in the VIS range.

Supplier: Inorganic Ventures

PerkinElmer ICP-OES UV Wavecal Solution

Supplier: HITACHI HIGH-TECH AMERICA, INC.

The Primaide™ is a standard HPLC system designed and manufactured to the highest quality by Hitachi. Suitable for academic and other small laboratories that need a sturdy and reliable standard HPLC system.

Supplier: Thermo Scientific

For 10mm square cuvettetes and SPECTRONIC* Standards Filter Kit (57971-338). For SPECTRONIC* 20+ Spectrophotometers (22348-110, 22348-108). Requires Test Tube Adapter (22357-005).