343275 Risultati per: "Gas & Liquid Sampling Valve Supplies"

Supplier: Saint Gobain Life Sciences

Questi Sacchetti, realizzati da una pellicola in fluoropolimero FEP dello spessore di 5 mil, flessibili e robusti sono sigillati a caldo su tutti e quattro i lati e assicurano una totale resistenza chimica e tenuta ermetica. Possono essere utilizzati per l’analisi di campioni gassosi, estraendo campioni di aria da sistemi di scarico di ciminiere, monitorando la qualità dell’aria o calibrando gli strumenti sul campo.

Supplier: Saint Gobain Life Sciences

Realizzati da una pellicola in fluoropolimero PVF dello spessore di 2 mil
Quando l'inerzia chimica del FEP non è richiesta, i sacchetti per campionamento gas in PVF sigillati a caldo Chemware® sono la scelta ideale. Questi sacchetti riutilizzabili sono un’alternativa economica perfetta per l‘analisi di gas non corrosivi. Utilizzabili per maneggiare monossido di carbonio, anidride solforosa, acido solfidrico, radon e tioli. Ideali per estrarre campioni di aria da sistemi di scarico di ciminiere in applicazioni di campionamento di gas combustibili.

Supplier: Merck

The unique valve and seam-sealing process ensure that these bags are sturdy and virtually leak-proof, even under the most demanding sampling and shipping conditions.

Supplier: Merck

These screw cap valve (SCV) bags are suitable for calibration mixes - gas phase standards/gas mixtures.

Supplier: Avantor Fluid Handling

Offer outstanding potential for precision control in liquid and gas analysis.

Supplier: Trajan Scientific and Medical

The gas tight syringes are fitted with a valve (SVLL) and a special Luer probe with a side hole for efficient sample intake.

Supplier: BURKLE

Le pompe a tamburo impediscono la fuoriuscita di vapori pericolosi, nocivi e maleodoranti durante la decantazione dei liquidi. I vapori prodotti, provenienti dal contenitore di riempimento, tornano nel contenitore di decantazione attraverso un condotto di trasferimento del gas. I condotti del gas e del liquido sono inoltre dotati di valvole di arresto.

Supplier: Merck

Profenofos CRM may also be used as given below: Evaluation of 250 pesticide residues extracted by QuEChERS method from 103 processed fruit samples using ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS. Gas chromatography-tandem mass spectrometry (GC-MS/MS) based analysis of 213 pesticide residues in soybean after their extraction by QuEChERS procedure. Detection of 252 pesticides extracted from surface water samples by solid-phase extraction (SPE) using liquid chromatography quadrupole-orbitrap high-resolution tandem mass spectrometry. Multi-residue analysis of 160 multiclass pesticides using ethyl acetate (EtAC)/n. hexane mixture for extraction from chamomile thyme and marjoram samples and their analysis by gas chromatography-tandem mass spectrometry (GC-MS/MS). Simultaneous determination of 34 pesticides in various environmental water samples by dispersive liquid-liquid microextraction (DLLME) technique in combination with gas chromatography-mass spectrometry(GC-MS/MS). Quantitation of 40 multi-class insecticides and fungicides in 81 apple samples by using gas- and liquid- chromatography-mass following a QuEChERS-based extraction.

Supplier: S.C.A.T.

The ready-to-use automatic switching sets prevent the overflowing of disposal containers and the associated leakage of hazardous, toxic, or explosive liquid waste.

Supplier: Merck

Pentafluorophenylhydrazine may be used as a derivatizing agent in the determination of semi-volatile carbonyl compounds in air and human plasma samples, using high-resolution gas chromatography coupled with gas chromatography (HRGC-MS) and liquid chromatography atmospheric-pressure chemical-ionization mass spectrometry (LC-APCI-MS-MS), respectively.

Supplier: Merck

Metrafenone CRM may also be used in the residue analysis of: 209 pesticides and persistent organic pollutants (POPs) extracted by QuEChERS-based procedure from fresh bovine and chicken liver samples using gas chromatography coupled to tandem mass spectrometry (GC-MS/MS). 252 pesticides extracted from surface water samples by solid-phase extraction (SPE) using liquid chromatography quadrupole-orbitrap high-resolution tandem mass spectrometry. 250 pesticide residues extracted by QuEChERS method from 103 processed fruit samples using ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS). 379 pesticides in human serum samples extracted by QuEChERS method using liquid chromatography-tandem mass spectrometry (LC-MS/MS). Metrafenone in nine fresh vegetable samples using matrix solid-phase dispersion (MSPD) and HPLC-UV. Metrafenone in bitter gourd and soil samples using gas chromatography combined with an electron capture detector (GC-ECD).

Supplier: Merck

Glycerol may be used as a reference standard in the determination of glycerol in samples of beer using gas liquid chromatography (GLC). It is a simple polyol compound, which is obtained as a by-product of soap and bio-diesel industries. It is odourless, colour-less, viscous in nature, and exists as a sweet tasting liquid. It can be derived naturally as well as from petrochemical feedstock.
Glycerol has been used as:

Supplier: Merck

The fluid sampling kit is a complete solution for field-based fluid collection and contamination analysis. The stainless steel sampler assembly plugs into a quick-release valve installed in the system line, which allows a measured quantity of liquid to pass through the monitor. A valved syringe serves as a pump to remove residual liquid from the monitor. Kit is compatible with our 37 mm contamination monitors and matched-weight monitors.

Supplier: Merck

Tebutam CRM may also be used as given below:
Optimisation of sample extraction based on QuEChERS and dispersive-solid-phase extraction (d-SPE) clean-up for the multi-residue analysis of 120 pesticides 16 polycyclic aromatic hydrocarbons and 22 polychlorinated biphenyls by liquid and gas chromatography coupled with tandem mass spectrometry (MS/MS)
Evaluation of 250 pesticide residues extracted by QuEChERS method from 103 processed fruit samples using ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS)
Determination of 90 pesticides 16 polycyclic aromatic hydrocarbons and 22 polychlorinated biphenyls in honey samples by using QuEChERS combined with dispersive solid-phase extraction (SPME) for sample pre-treatment and liquid chromatography-triple-quadrupole tandem mass spectrometry and gas chromatography-ion-trap tandem mass spectrometry for quantitation
Screening and quantification of 569 pesticides in honeysuckle samples by a combination of ultrahigh-performance liquid chromatography (UHPLC) and quadrupole-Orbitrap high-resolution mass spectrometry
Simultaneous determination of 134 pesticide residues in tea samples using d-SPE extraction with a multi-functional filter (MFF) followed by ultra-high performance liquid chromatography (UPLC) and quadrupole time-of-flight mass spectrometry (TOF-MS).

Supplier: LABCONCO

Manual valve gas and vacuum tubing connection kit, with flexible vinyl tubing and fittings necessary to connect user-supplied inert gas supply tank and rotary vane vacuum pump to valves located on the glove box

Supplier: Merck

Syringe filters are single-use, membrane-based devices used for the removal of particulate impurities from liquid and gas samples prior to analysis by methods such as HPLC, ion chromatography, gas chromatography, ICP, and dissolution testing. Proper filtration of samples improves the quality and consistency of analytical results and decreases instrument downtime.

Supplier: ENTEGRIS

Available compliant to SEMI Standard F57-0312, the specification for polymer components used in ultrapure water and liquid chemical distribution systems. Allows continuous flow through parallel ports. When actuated, the sample port opens allowing fluid to flow out or in. All wetted parts are molded PFA providing chemical resistance suitable for use in high purity, high corrosive chemical handling applications.

Supplier: Merck

Syringe filters are single-use, membrane-based devices used for the removal of particulate impurities from liquid and gas samples prior to analysis by methods such as HPLC, ion chromatography, gas chromatography, ICP, and dissolution testing. Proper filtration of samples improves the quality and consistency of analytical results and decreases instrument downtime.

Supplier: Merck

Simazine CRM may also be used as given below: Development and validation of an ultrasonic-assisted dispersive liquid-liquid microextraction (UA-DLLME) method for sample extraction followed by gas chromatography-mass spectrometry based determination of endocrine-disrupting herbicides in the river and seawater samples. Determination of triazine pesticide residues in samples of apples pears carrots potatoes tomatoes avocado cucumber spinach bananas and oranges by modified QuEChERS and solid-phase extraction (SPE) procedures followed by liquid chromatography-photodiode array (LC-DAD) analysis. Multi-residue analysis of 67 pesticides in olive oil olives and avocado samples by liquid chromatography-tandem mass spectrometry (LC-MS/MS) to evaluate various clean-up sorbents. Quantitation of 20 pesticides in eel and shrimp samples by a scheduled multiple reaction monitoring (sMRM) method and QuEChERS with EDTA for sample extraction and purification. Analysis of 35 micropollutants including pesticides in water samples by liquid chromatography-tandem mass spectrometry (LC-MS/MS) after their solid-phase extraction. Simultaneous quantification of 58 pharmaceuticals and personal care products (PPCPs) and pesticides in water samples by solvent-based de-emulsification dispersive liquid-liquid microextraction (SD-DLLME) combined with liquid chromatography-tandem mass spectrometry (LCMS/MS).

Supplier: BURKLE

Campionatori per sostanze viscose, pastose, semiliquide.

Supplier: VWR Collection

Microsiringhe senza ago
Connettore Luer Lock generico per uso con autocampionatori e strumenti per il dosaggio dei liquidi. Tutte le parti a contatto con il campione sono realizzate in vetro borosilicato e PTFE neutri. Ciò assicura prestazioni eccellenti e ambiente inerte del campione.

Supplier: HAMILTON BONADUZ

This MTB sampling valve is a lever-actuated on/off valve used for storing and transporting samples in any Gastight® PTFE Luer lock (TLL) or Luer tip (LT) syringe.

Supplier: Merck

Monolinuron CRM may also be used as given below: Determination of 252 pesticides extracted from surface water samples by solid-phase extraction (SPE) using liquid chromatography quadrupole-orbitrap high-resolution tandem mass spectrometry. Extraction of 13 pesticides from four groundwater and three river water samples using silica-based MSU-1 mesoporous solid as a sorbent for their solid-phase extraction (SPE) followed by ultra-performance liquid chromatography-triple quadrupole-mass spectrometric (UHPLC- QqQ-MS/MS) determination. Development and validation of a UHPLC-diode array detection (DAD) method for simultaneous determination of urea and tebuthiuron herbicides in four fresh vegetable samples. Multi-residue analysis of 50 herbicides in 51 grain samples of soybean corn and wheat by ultra-performance liquid chromatography-electrospray ionisation-mass spectrometry (UPLC-ESI-MS). Extraction of 109 pesticide residues from different chemical classes from 345 tomato samples by modified QuEChERS method and their determination using liquid chromatography-tandem mass spectrometry (LC-MS/MS). Simultaneous analysis of 238 pesticides and 78 veterinary drugs in 80 bovine milk samples using ultra-fast liquid chromatography-tandem mass spectrometry (UFLC-MS/MS) and gas chromatography-tandem mass spectrometry (GC-MS/MS).

Supplier: VWR Collection

These triple-display thermometers offer a choice of different probes. The bottle insulates the thermometer from rapid temperature changes when door is opened. The stainless steel handle probe (Ø×L: 3,2×300 mm) with 3 metre cable is waterproof and suitable for liquids, air/gas and semi-solids, with adjustable holder and VELCRO® tape.

Supplier: Thermo Fisher Scientific

Poly(vinylidene fluoride) is useful in coatings, film, filter cloth, instrument linings, filtration membranes, pump parts, linings and valves. It is also employed as a material for transducers in devices such as headphones, microphones and sonic detectors. It is also essential for piezoelectric and electrostrictive applications. In addition, it is useful for monofilament fishing lines replacing nylon monofilament. It acts as a standard binder used in the production of composite electrodes for lithium ion batteries. It serves as a high grade insulator for wires, nanomaterials and pressure sensors. It is utilized to make filters which are used to prepare samples for high performance liquid chromatography and other advanced analytical techniques.
Notes: Incompatible with strong oxidizing agents.

Supplier: VWR Collection

These international standard digital thermometers provide exact readings necessary for critical requirements, quality control checks and routine measurements. The stainless steel probe shows the slightest temperature change in liquid, air/gas and semi-solids. It delivers exact time/date when temperatures rise above/fall below set points.

Supplier: EVOQUA WATER TECHNOLOGIES

In case of leakage, a sensor activates a solenoid valve to shut down the water supply.

Supplier: VWR Collection

These ready to use thermometers, with probe, are designed for temperature measurements which require high accuracy. They can be used for general purpose applications in air, gas, liquid and solids measurements, depending on the probe type. They are suitable for use in pharmaceutical and biotechnology companies (production and laboratories in the food industry), dairy products, fish, meat, healthcare, blood, government institutes and the environment.

Supplier: Greisinger

Monitoring of devices and machines with a water connection.

Supplier: ENTEGRIS

GateKeeper®, ISO valve, Per: For gas purifiers, GateKeeper® GPU 300 4R