第三代自激式设计40.68 HMz射频发生器
质量范围(m/z):3~285amu
主四极杆扫描速度:> 5000 amu/sec
可用积分时间可缩短至0.1ms
消除干扰有以下三种模式:标准模式、碰撞池模式、反应池模式
适合做多元素的形态分析,可同时测4种元素形态
真空系统:冷启动时间为5min
0.25ml/min (一般5ml/min)的微流量雾化器
灵活的、可升级的新平台,
300Q:标准型不带反应池
300X:带单通道通用池
300D:带双通道的通用池
300S:带超净化处理,针对半导体工业
The NexION 300X ICP-MS is available in two configurations: single and dual channel.
The following performance can be measured under a single set of optimized conditions for each mode.
检出限
Based on three times the standard deviation of the blank using three-second integration time and peak
hopping at 1-point per mass.
元素 ng/L (ppt)
9 Be < 1
59 Co < 1
115 In < 0.5
238 U < 0.5
灵敏度
元素 M cps/mg/L
9 Be > 3
24 Mg > 20
115 In > 50
238 U > 40
Oxide and doubly-charged species
Measured without the use of a desolvation device such as a chilled spray chamber and under identical
operating conditions used to achieve sensitivity and detection-limit specifications.
CeO + /Ce + < 0.025
Ce ++ /Ce + < 0.03
Background signal
Mass 220 < 1 cps
Short-term precision
Defined as the relative standard deviation (% RSD) for a 1-10 µg/L multielement solution, automatically
cycling between cell and non-cell modes, using a 3-second integration time, without internal standardization.
< 3% RSDLong-term stability
Relative stability after a one-hour warm-up period. Defined as the relative standard deviation of the mean signal for a 1-10 µg/L
multielement solution, automatically cycling between cell and non-cell modes, measured once every 10 minutes, without internal
standardization.
< 4% RSD over 4 hours
Isotope-ratio precision
Defined for the isotope ratio of 107 Ag/ 109 Ag. Obtained using single-point peak hopping.
< 0.08*% RSD (*or within a factor of two of the counting statistics limit)
Mass calibration stability
Measured using a 1 µg/L multielement solution containing 7 Li, 24 Mg, 115 In and 238 U. Defined in terms of the shift in spectral
position corresponding to maximum spectral peak intensity for each element, obtained without the use of multiple-point,
peak-searching algorithms.
< 0.05 amu over 8 hours of continuous operation
Quadrupole peak hop (slew) speed
Defined as the maximum rate at which the quadrupole can change from the minimum mass to the maximum mass without
affecting the precision of the analytical measurement.
1.6M amu/sec
Quadrupole scan speed
Defined as the maximum rate at which the quadrupole can be scanned while acquiring continuous spectral data at every mass
from the minimum to the maximum mass of the instrument (1-285 amu).
5000 amu/sec
Abundance sensitivity
Defined as the intensity of a given isotope at spectral peak maximum, relative to the intensity of that isotope at 1 amu lower
and at 1 amu higher than the mass position corresponding to peak maximum.
Measured at 23 Na:
Better than 1.0 x 10 -6 at low mass side of peak
Better than 1.0 x 10 -7 at high mass side of peak
Detector linear range
The SimulScan ™ detection system operates from < 0.1 cps to > 10 9 cps. This provides over 10 orders of magnitude of linear
dynamic range in a single continuous scan.
Transient data acquisition speed
> 3000 temporal data points/sec maximum
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