可攜式元素分析儀

E-max 可攜式元素分析儀 | Z-SPEC

E-max is a robust and portable analyzer designed for rapid heavy-metal analysis in soil and food. It offers simultaneous measurement of other heavy metals like As, Pb, Cu, Ni, and Cr in soil & agricul...
詳細介紹
Whether you are an agricultural inspector or environmental assessor, E-max enables you to run more samples in less time, allowing you to conduct a more thorough analysis for improved site remediation and land use decisions.
  • Quantification of Low-level Cd

E-max is a monochromatic energy-dispersive x-ray fluorescence analyzer using a monochromatic beam optimized for Cd excitation. Taking advantage of the superior signal/background (S/B) ratio, it delivers unprecedented Cd LOD. It can rapidly survey and quantify low-level Cd in food with minimum or even no sample preparation.

Figure 1 below shows Cd K-α signal peaks from three different rice samples.


 
  • Features

  • Ultra-high signal-to-background ratio and ultra-low detection limit
  • Portable design: light-weight and comfortable to carry
  • Minimum sample preparation enables on-site sampling and quantification
 
  • FP Approach Calibration

E-max applies fundamental-parameters (FP) approach to calibrate the system, using reference materials to refine FP parameters. The FP approach allows E-max to measure various types of food with one calibration curve. Custom calibration curves can also be established to further improve accuracy for some specific sample types. The below Figure 2 shows the excellent linearity of measurement values and standard values of Cd in dried rice, tomato and spinach.


 
  • Specification

The following figure shows the detection sensitivity of E-max to different elements.
 

 

TableE-max – Limit of Detection (ppm) Application: Trace Heavy Metals in Food

Element

Cd

As

Hg

Pb

Cr

Cu

Ni

Zn

Mn

Co

Se

V

Sb

Tl

Mo

Scan mode

(100s)

0.1

0.15

0.2

0.2

9.0

1.5

3.0

0.6

15.0

40.0

1.5

100.0

0.12

0.2

0.12

Quantitative mode (600s)

0.03

0.05

0.07

0.07

3.0

0.5

1.0

0.2

5.0

16.0

0.5

40.0

0.04

0.07

0.04

 

Model

E-max

Measuring time

30 - 1200 s

Element range

40 elements between Al - U

Data storage and output

Printout, Ethernet, USB, internal storage, U disk

I/O port

Ethernet 10/100, USB

Power

110-240 VAC ± 10%, 50-60 Hz (Hertz),

Built-in battery 98 Wh (optional)

Working temperature & humidity

+41˚F - 104˚F (5˚C - 40˚C), 30 - 85 %

Weight

9 kg

Dimensions

30 cm W x 23 cm L x 26 cm H