Agilent 7500

For many years Carl Stuart Ltd has been providing exceptional ICP-MS parts and supplies from Agilent. These ICP-MS parts and supplies are designed, manufactured, and tested to the most rigorous specifications for your 4500 and 7500 ICP-MS systems.

Agilent Skimmer and Sampling Cones

The Nickel sampling cone is used as the standard interface. This sampling cone is relatively robust to samples containing high concentrations of matrix and salts, and is suitable for a wide variety of samples. It is usually used with the Nickel skimmer cone.

The Platinum sampling cone is usually used for introduction of hydrofluoric acid and other reagents. Typically it is used with the Platinum skimmer cone, and is suitable higher concentrations of acids. The Platinum skimmer cone must be mounted on the brass skimmer base (G1820-60104), otherwise the copper base of the skimmer cone will be deteriorated, and shorten the lifetime of the skimmer cone itself.

Agilent Electron Multiplier

The electron multipler converts incident ions into an amplified electric current to measure the ion signal. As voltage increases, amplification factor (gain) increases. The electron multiplier for the 4500 ICP-MS should be replaced when the total ion count reaches more than 3.2 x 1011 (this value is displayed in the software run time window) and the sensitivity is less than 4000 counts with 10 ppb Y (89 amu), even when applying detector voltage above 2700V. In general, the number of counts an EM can measure is 1.6 x 1010.

Agilent Standards

When performing chemical analyses, you can't afford to settle for anything less than the highest standards. That is why Agilent Technologies standards are the perfect solution for you. Every Agilent standard must meet the uncompromising parameters of our ISO-9001 registered quality system. This quality system means the strictest quality control of incoming raw materials and the meticulous validation of analyte concentrations, homogeneity, and stability.

Agilent Ion Len Systems

The Extraction lens is placed just behind the skimmer cone and mounted on the skimmer base. It extracts positive ions and accelerates them to the Einzel lens. The Omega lens separates photons and ions and steers ions onto the quadrupole MS.

Agilent Torches

Agilent Torches are comprised of three Concentric Quartz tubes through which streams of argon gas pass. The three streams are: plasma, auxiliary, and nebulizer (carrier) gas. The Quartz torch is not suitable for samples containing hydrofluoric acid. It must be completely dried before installing and igniting the plasma. The torch should be replaced if chipped, cracked or distorted.

Agilent Rotary Pumps

Warning: Be careful when changing oil because the oil may have absorbed dangerous substances. The oil in the rotary pump on the interface side of a 7500 equipped with a hydrofluoric acid resisting introduction system is especially dangerous. Do not touch with bare hands.

Agilent Peristaltic Pump

The peristaltic pump tubing has to be washed prior to use. The common way is to run about 5% HNO 3 (v/v) solution. If customers use HCl, Sn is eluted from the Tygon tube. In this case, 3% HCl (v/v) should be pumped at 0.1 rps, for less than an hour, by the new peristaltic pump tube.

Caution: Some chemicals attack the peristaltic pump tube. This might cause leakage in the sample introduction and drain lines and corrosion of the sample introduction system.

Agilent Nebulisers

The nebulizer disperses the sample solution from the peristaltic pump as a fine mist into the spray chamber using a stream of argon gas. There are three types of nebulizers available: Babington nebulizer (BN), Concentric nebulizer (CN), and Crossflow nebulizer (CF).