Wilmad WG-1208-8 Economy 5 mm NMR Sample Tube, 200 MHz, 8" L (Pack of 5)

30% Thicker Wall than Any Competitors' Product

ASTM E438 Type 1 Class B Glass

Gurantee Tight Fit in Spinner Turbine

Best OD Tolerance in the Industry

Zero NMR Background

style:

MHz Rating: 200

Retail Price: $ 15.9

Wholesale Price: Inquire Now

Wilmad Economy NMR Tubes

Designed for routine use in all NMR spectrometers, Wilmad Economy NMR Tubes are guaranteed to fit tightly in any spinner turbine and have zero NMR background.

Best O.D. tolerance in the industry and a 30% thicker wall than any competitors’ product
Manufactured in an ISO 9001:2015 USA facility
Camber and concentricity values listed are the Total Indicator Reading (TIR)
Visual and physical inspection ensures quality, including physical dimensions and surface defects
Made from borosilicate glass; meets ASTM E438 Type 1 Class B standard, recognized as N51A
Includes disposable cap
Recommended only for experiments with small organic molecules (Molecular Weight ~500) at ambient temperatures only
Cooling/heating of these tubes may lead to breakage; for NMR experiments that involve cooling, heating, biological sample, multi-dimension, multi-nuclei or DNP techniques, refer to Wilmad Precision NMR Tubes

Note: Caps are not recommended for use with samples dissolved in chloroform-d or acetone-d₆.

Importance of Tolerances

An NMR tube with poor tolerances can produce undesirable outcomes such as...

Tube rupture when using inserts
Modulation sidebands
Slippage in the turbine
Breakage causing downtime & contamination


Outer & Inner Diameter Outer Diameter (O.D.) - A measure of the distance across the center of the tube from the outermost surfaces. Inner Diameter (I.D.) - A measure of the distance across the center of the tube from the innermost surfaces.	Concentricity A measurement of variation in the radial centers, measured at the inner and outer walls. Concentricity can be thought of as the degree to which the cylinders defined by the inner and outer surfaces of the tube are parallel. If the inner surface deviates and becomes closer to the outer surface that will cause one portion of the tube to have a smaller wall thickness than the other.	Camber The lack of straightness of an NMR tube. The camber of an NMR tube is measured by holding the tube on both ends and rotating it. During rotation, gauges measure the deflection in the middle of the tube giving a (+/-) deviation reading. All Wilmad-LabGlass Precision & Economy Thin-Walled tubes are guaranteed to have deviations less than 53.34 μm and can be expected to spin reliably.

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Wilmad WG-1208-8 Economy 5 mm NMR Sample Tube, 200 MHz, 8" L (Pack of 5)

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Product introduction

Shipping Notices

Wilmad-LabGlass Economy NMR Tubes are manufactured from borosilicate glass that meets the ASTM Type 1 Class B standard and recognized as N51A. Due to its nature, this glass has much less thermal-shock resistance than Class A glass used for our Precision Tubes. It may contain Fe2O3 which is paramagnetic (1200 ppm) and has certain impact on shimming quality depending on the magnetic field strength. Economy tubes are recommended only for experiments with small organic molecule (Molecular Weight ~500) at ambient temperature only. The camber and concentricy listed in the product specification table is the upper limit value. Wilmad does not require a minimum purchase quanity. The unit price is one single tube. Each tube comes with a disposable cap.Cooling/heating of these tubes may lead to breakage. For NMR experiments that involve cooling, heating, biological sample, multi-dimension, multi-nuclei or DNP techniques; please refer to our Precision brand NMR Tubes. Some of our competitors altered our MHz rating standard by advertising inferior tubes for higher magnetic field experiments. Please visit our NMR Economy Tube Cross Reference Guide to make a head-to-head comparison including pricing. The products listed on the same row will have the same performance at the same magnetic field IF the specifications of our competitors' product are guaranteed as advertised. From this guide we will prove our 60 year philosophy again as "committed to providing customers with cost-effective NMR consumables of the highest quality".

From the manufacturer

Wilmad Economy NMR Tubes

Designed for routine use in all NMR spectrometers, Wilmad Economy NMR Tubes are guaranteed to fit tightly in any spinner turbine and have zero NMR background.

Best O.D. tolerance in the industry and a 30% thicker wall than any competitors’ product
Manufactured in an ISO 9001:2015 USA facility
Camber and concentricity values listed are the Total Indicator Reading (TIR)
Visual and physical inspection ensures quality, including physical dimensions and surface defects
Made from borosilicate glass; meets ASTM E438 Type 1 Class B standard, recognized as N51A
Includes disposable cap
Recommended only for experiments with small organic molecules (Molecular Weight ~500) at ambient temperatures only
Cooling/heating of these tubes may lead to breakage; for NMR experiments that involve cooling, heating, biological sample, multi-dimension, multi-nuclei or DNP techniques, refer to Wilmad Precision NMR Tubes

Note: Caps are not recommended for use with samples dissolved in chloroform-d or acetone-d₆.

Importance of Tolerances

An NMR tube with poor tolerances can produce undesirable outcomes such as...

Tube rupture when using inserts
Modulation sidebands
Slippage in the turbine
Breakage causing downtime & contamination


Outer & Inner Diameter Outer Diameter (O.D.) - A measure of the distance across the center of the tube from the outermost surfaces. Inner Diameter (I.D.) - A measure of the distance across the center of the tube from the innermost surfaces.	Concentricity A measurement of variation in the radial centers, measured at the inner and outer walls. Concentricity can be thought of as the degree to which the cylinders defined by the inner and outer surfaces of the tube are parallel. If the inner surface deviates and becomes closer to the outer surface that will cause one portion of the tube to have a smaller wall thickness than the other.	Camber The lack of straightness of an NMR tube. The camber of an NMR tube is measured by holding the tube on both ends and rotating it. During rotation, gauges measure the deflection in the middle of the tube giving a (+/-) deviation reading. All Wilmad-LabGlass Precision & Economy Thin-Walled tubes are guaranteed to have deviations less than 53.34 μm and can be expected to spin reliably.

Shipping Notices:

1 Contraband and limited items:

Clgarette,Alcohol,Contraband ?Do not accept

Liquid,cream or cosmetics items are quantity limited in shopping agent service

Chinese medicine is limited to ship by Chinese exporting goods.

2 Limitation for different shipping methods:

3 Yoybuy Product's Label:

Sensitive Product(SEN)

Product With battery

Cream

Powder

Dangerous Products

4 Volume weight Requested:

volume weight=length*height*Width/5000

one side must be less than 120cm，otherwise there is additional fee；250cm products can not be accept；

Any side must be less than 60cm，otherwise you will be charged the greater one between real weight and volume weight，more than 120cm will be not accepted.