Platinum Skimmer Cone, Boron-Free ¿ For PerkinElmer NexION 1000/2000 & 300/350 ICP-MS. Suitable for low boron backround and most applications, including corrosive samples (e.g., routine aqueous environmental samples, >5% acid matrix, HF, organic). Although the highest cost option, it is typically the most durable, longest-lasting, and because it runs hotter it requires less frequent cleaning. Use 10x Magnifier Inspection Tool with Built-In LED Illumination (NC2042261) to inspect cone orifice condition. When not in use, keep cones stored in original packaging for protection. Use skimmer ConeGuard to protect cone threads during cleaning, 70-803-1026.For routine samples, we recommend Nickel Skimmer Cones, see catalog number 501907685. For corrosive samples, including HF, we recommend Platinum Sampler Cones, see catalog number 501907688.Glass Expansion is ISO 9001:2015 certified by AB Certification, No. AU4501-9001