NEW PRODUCTS

NEW PRODUCTS The POPPETTE series of adjustable, positive-displacement micropipettors is designed for polymerase chain reaction, DNA hybridization, and radioactive applications. The devices feature a disposable plunger and tip unit. Whatman LabSales Inc., Hillsboro, Ore. Circle No. 88 on Reader Service Card Purification Kit MAb Pharm is a new kit for producing and purifying research- scale quantities of monoclonal antibody (MAb). The kit includes the Micro Mouse hollow-fiber bioreactor cell culture system; the Hybrid Grow basal medium, specialized for growing hybridomas; and AvidChrom for MAbs, formulated specifically for purifying monoclonal antibodies. Unisyn Technologies, San Diego Circle No. 89 on Reader Service Card Cathepsin D ELISA measures both the pro- and mature forms of cathepsin in human cytosols and extracts, as well as material derived from cell cultures. The uPA ELISA detects uPA bound to its receptor or to PAI-1 in tumor and serum cell culture-derived samples. Oncogene Science Inc., Cambridge, Mass. Circle No. 90 on Reader Service Card The Dyna-Mix Plus is a high-pressure, microgradient dynamic mixer designed for microbore and packed capillary chromatography HPLC. It can mix flow rates from less than 5 'l/min to 500 'l/min in a low-volume, two-stage mixer. Mixing rotors may be changed to optimize for solvent, viscosity, and gradient slope for microgradient liquid chromatography. Micro-Tech Scientific, Saratoga, Calif. Circle No. 91 on Reader Service Card The Transjector Models 5246 and 5246 Plus are designed for injecting or transferring micro volumes of liquids into living cells. The Transjector 5246 features an on-board pressure supply, a remote keypad controller, and dual pressure outlets. The 4246 Plus model additionally features the ability to transfer micro volumes from one cell to another. Eppendorf North America Inc., Madison, Wis. Circle No.92 on Reader Service Card Balances The new AG balances, which replace the AE series, feature higher, hexagonal draft shields and motorized calibration. Four models are available, offering the LocalCan universal interface, selectable units, a formula weighing program, dynamic weighing, and piece counting. Mettler Toledo Inc., Hightstown, N.J. Circle No. 93 on Reader Service Card Strip-Ease-12 consists of strips of 12 thin-walled 0.2 ml PCR tubes and matching caps for various sample processing requirements. Made from virgin polypropylene, they are available in sterile or non-sterile forms and are certified RNase- and DNase-free. Robbins Scientific Corp., Sunnyvale, Calif. Circle No. 94 on Reader Service Card Ultrafree-20 centrifugal filters are designed to process biological samples from as little as 0.5 ml to 20 ml. In addition to concentration, purification, and desalting, applications include recovery of enzymes, virus, bacteria, yeast, and peptides from biological samples. The filters may also be used for the recovery of low-molecular-weight components from cell lysates, culture media, or fermentation broths. Millipore Corp., Bedford, Mass. Circle No. 95 on Reader Service Card Origin is a Windows-based software package designed to acquire, manipulate, and present data for scientific and engineering applications. The 3.5 version features enhancements to previous applications as well as three new add-on modules for real-time data visualization and manipulation, peak fitting, and file utilities. Microcal Software Inc., Northampton, Mass. Circle No. 96 on Reader Service Card The PhosphorImager 445 SI allows researchers to replace traditional X-ray film and developing chemicals with reusable tritium-sensitive storage phosphor screens that reportedly are 10 to 100 times more sensitive than film. The system works with Mac, PC, PowerPC, or Pentium benchtop computers, and comes with ImageQuaNT analysis software that uses the 32-bit operating system of Windows NT. Molecular Dynamics, Sunnyvale, Calif. Circle No. 97 on Reader Service Card ADAM (9-anthryldiazomethane) reacts with carboxylic acids at room temperature to yield fluorescent esters that can be quantitated with high-performance liquid chromatography. No heating or catalyst is required, and most organic solvents may be used as a reaction medium. In addition to detecting picomole quantities of fatty acids, ADAM may be used to measure microgram amounts of oxalic acids in biological samples. Kamiya Biomedical Co., Thousand Oaks, Calif. Circle No. 98 on Reader Service Card The HP atmospheric pressure ionization (AIP) electrospray liquid chromatograph/mass spectrometer (LC/MS) system detects and measures proteins and peptides from low-picomole to high-femtomole levels. It measures the molecular weights of peptides, intact proteins, and oligosaccharides up to 150,000 daltons with an accuracy better than 0.02 percent. The system can be coupled with conventional HPLC methods for online characterization of enzymatic digests of proteins. It automatically matches masses to amino acid sequences. Hewlett-Packard Co., Palo Alto, Calif. Circle No. 99 on Reader Service Card

NEW PRODUCTS

The Scientist Staff

Interested in reading more?

Become a Member of