{"id":843791,"date":"2026-10-24T20:15:02","date_gmt":"2026-10-24T20:15:02","guid":{"rendered":"https:\/\/www.abnewswire.com\/pressreleases\/?p=843791"},"modified":"2026-10-24T20:15:02","modified_gmt":"2026-10-24T20:15:02","slug":"the-wfx860b-pro-zeeman-atomic-absorption-spectrometer-supports-trace-gold-analysis-in-ore","status":"publish","type":"post","link":"https:\/\/www.abnewswire.com\/pressreleases\/the-wfx860b-pro-zeeman-atomic-absorption-spectrometer-supports-trace-gold-analysis-in-ore_843791.html","title":{"rendered":"The WFX-860B Pro Zeeman Atomic Absorption Spectrometer Supports Trace Gold Analysis in Ore"},"content":{"rendered":"

Beijing<\/strong>, China – <\/strong>October 24<\/strong>, 2026<\/strong><\/p>\n

The WFX-860B Pro Zeeman Atomic Absorption Spectrometer<\/a> combines flame atomic absorption spectroscopy with constant-field Zeeman background correction for trace gold analysis in ore, supporting sensitive gold determination in geological and mining laboratories.<\/p>\n

Beijing Beifen-Ruili’s WFX-860B Pro Zeeman Atomic Absorption Spectrometer<\/a> integrates a dual-beam, self-correcting optical system, precise fuel-gas control, and features that simplify operation and maintenance. In the application described here, the instrument was used with sample preparation and gold separation to achieve a method detection limit of 0.0077 g\/t. Tests on ore samples and a certified reference material further demonstrated the performance of the analytical workflow.<\/p>\n

\"WFX-860B<\/p>\n

Figure 1. WFX-860B Pro Zeeman Atomic Absorption Spectrometer.<\/em><\/p>\n

Instrument Technology for Trace Gold Analysis<\/p>\n

Gold can occur at low concentrations and be unevenly distributed in ore. Complex sample compositions and nonspecific background interference create additional challenges for quantitative analysis.<\/p>\n

The WFX-860B Pro<\/a> uses a dual-beam, self-correcting optical system together with constant-field transverse Zeeman background correction. The instrument’s stated background correction capability exceeds 150-fold across its operating wavelength range and applicable elements.<\/p>\n

The source application reports measured static baseline stability of ≤0.0004 Abs over eight hours, dynamic baseline stability of ≤0.001 Abs over four hours, and noise fluctuations of ≤0.00009 Abs with the flame operating. This stability and low noise support the measurement of weak gold absorption signals after sample preparation.<\/p>\n

Practical Features for Daily Laboratory Work<\/p>\n

The flame system incorporates a high-precision mass flow controller for automatic fuel-gas regulation. A burner-head quick-release mechanism enables removal in three seconds, providing convenient access for routine cleaning.<\/p>\n

Multiple software and hardware safety protections support instrument operation, while the modular design facilitates maintenance. The workstation includes intelligent one-click optimization, and the system can be expanded with auto-sampling and audit trail functions.<\/p>\n

Together, these features combine analytical performance with the operating and maintenance needs of routine laboratories.<\/p>\n

Application Workflow for Gold Determination in Ore<\/p>\n

The application study used a 10 g ore test portion. Sample preparation involved roasting, aqua regia digestion, polyurethane foam adsorption, and thiourea elution before instrumental measurement.<\/p>\n

Gold was determined by flame atomic absorption spectroscopy using constant-field Zeeman background correction. The reference operating conditions were:<\/p>\n\n\n\n\n\n\n\n\n\n\n
\n

Parameter<\/p>\n<\/td>\n

\n

Setting<\/p>\n<\/td>\n<\/tr>\n

\n

Element<\/p>\n<\/td>\n

\n

Au<\/p>\n<\/td>\n<\/tr>\n

\n

Wavelength<\/p>\n<\/td>\n

\n

242.8 nm<\/p>\n<\/td>\n<\/tr>\n

\n

Spectral bandwidth<\/p>\n<\/td>\n

\n

0.2 nm<\/p>\n<\/td>\n<\/tr>\n

\n

Lamp current<\/p>\n<\/td>\n

\n

3 mA<\/p>\n<\/td>\n<\/tr>\n

\n

Atomizer height<\/p>\n<\/td>\n

\n

5 mm<\/p>\n<\/td>\n<\/tr>\n

\n

Fuel-gas flow rate<\/p>\n<\/td>\n

\n

1.2 L\/min<\/p>\n<\/td>\n<\/tr>\n

\n

Background correction<\/p>\n<\/td>\n

\n

Constant-field Zeeman<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Calibration standards were also processed through the acid-treatment and adsorption–elution steps specified in the method. The calibration covered 0–8 μg\/mL and showed good linearity under the selected experimental conditions, with the equation:<\/p>\n

A = 0.035724C + 0.001950<\/p>\n

where A is absorbance and C is the gold concentration in μg\/mL.<\/p>\n

\"Gold<\/em><\/p>\n

Figure 2. Gold calibration curve obtained using the WFX-860B Pro under the specified experimental conditions.<\/em><\/p>\n

Method Detection Limit of 0.0077 g\/t<\/p>\n

A gold-free geological powder sample was processed through the sample-preparation procedure and used as the blank. Eleven measurements gave a standard deviation of 0.0028 μg\/g.<\/p>\n

Using the calculation specified in the source method, the method detection limit was 0.0077 g\/t. The lower quantification limit, calculated as four times the method detection limit, was 0.031 g\/t.<\/p>\n

These values apply to the complete analytical method under the reported conditions, including sample preparation and instrumental measurement.<\/p>\n

Results from Ore Samples and a Certified Reference Material<\/p>\n

Two ore samples from a geological laboratory were analyzed to assess the method’s performance in actual samples.<\/p>\n\n\n\n\n\n
\n

Ore sample<\/p>\n<\/td>\n

\n

Measured result (g\/t)<\/p>\n<\/td>\n

\n

Parallel result (g\/t)<\/p>\n<\/td>\n

\n

Spike recovery<\/p>\n<\/td>\n<\/tr>\n

\n

Sample 1<\/p>\n<\/td>\n

\n

0.60<\/p>\n<\/td>\n

\n

0.61<\/p>\n<\/td>\n

\n

97.5%<\/p>\n<\/td>\n<\/tr>\n

\n

Sample 2<\/p>\n<\/td>\n

\n

1.73<\/p>\n<\/td>\n

\n

1.69<\/p>\n<\/td>\n

\n

98.8%<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

The parallel results differed by 0.01 and 0.04 g\/t, respectively. Spike recoveries of 97.5% and 98.8% supported effective recovery of gold through the analytical procedure for these samples.<\/p>\n

The study also tested the gold ore certified reference material GBW(E)070270. The measured concentration was 0.34 g\/t, compared with the certified value of 0.35 ± 0.09 g\/t. The reported absolute relative error was 2.86%.<\/p>\n

Seven consecutive instrumental measurements yielded a relative standard deviation of 0.47%, demonstrating measurement repeatability under the study conditions.<\/p>\n

Supporting Routine Ore Analysis<\/p>\n

The WFX-860B Pro combines constant-field transverse Zeeman background correction, stable optical performance, automatic fuel-gas control, and convenient maintenance features for flame atomic absorption analysis.<\/p>\n

The gold ore application demonstrates its use within a defined analytical workflow, with results covering method detection capability, spike recovery, parallel sample agreement, and certified reference material measurement. These application data support evaluation of the WFX-860B Pro<\/a> for trace gold determination in geological and mining laboratories.<\/p>\n

About Us<\/strong><\/p>\n

Beijing BIIC Intelligent Technology Co., Ltd. (hereinafter referred to as BIIC-Tech) was established in June, 2020. BIIC-Tech is a leading measurement company in China now, dedicated to high-end analytical measuring instruments, industrial measurement and control instruments.<\/p>\n

Media Contact<\/span>
Company Name:<\/strong> Beijing Biic Intelligent Technology Co., Ltd.<\/a>
Contact Person:<\/strong> Media Relations
Email:<\/strong> Send Email<\/a>
Country:<\/strong> China
Website:<\/strong> https:\/\/www.bjbiictech.com\/<\/a><\/p>\n

\"\"<\/p>\n","protected":false},"excerpt":{"rendered":"

Beijing, China – October 24, 2026 The WFX-860B Pro Zeeman Atomic Absorption Spectrometer combines flame atomic absorption spectroscopy with constant-field Zeeman background correction for trace gold analysis in ore, supporting sensitive gold determination in geological and mining laboratories. Beijing Beifen-Ruili’s … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[401,410,403,404,416],"tags":[],"class_list":["post-843791","post","type-post","status-publish","format-standard","hentry","category-Business","category-Manufacturing-Industry","category-UK","category-US","category-World"],"_links":{"self":[{"href":"https:\/\/www.abnewswire.com\/pressreleases\/wp-json\/wp\/v2\/posts\/843791","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.abnewswire.com\/pressreleases\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.abnewswire.com\/pressreleases\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.abnewswire.com\/pressreleases\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.abnewswire.com\/pressreleases\/wp-json\/wp\/v2\/comments?post=843791"}],"version-history":[{"count":0,"href":"https:\/\/www.abnewswire.com\/pressreleases\/wp-json\/wp\/v2\/posts\/843791\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.abnewswire.com\/pressreleases\/wp-json\/wp\/v2\/media?parent=843791"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.abnewswire.com\/pressreleases\/wp-json\/wp\/v2\/categories?post=843791"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.abnewswire.com\/pressreleases\/wp-json\/wp\/v2\/tags?post=843791"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}