University of North Florida
Browse the Citations
-OR-

Contact Info

Stuart Chalk, Ph.D.
Department of Chemistry
University of North Florida
Phone: 1-904-620-1938
Fax: 1-904-620-3535
Email: schalk@unf.edu
Website: @unf

View Stuart Chalk's profile on LinkedIn

Soulin Lin

Abbrev:
Lin, S.L.
Other Names:
Address:
Department of Applied Chemistry, China University of Geosciences, Wuhan 430074, People's Republic of China
Phone:
NA
Fax:
NA
Email:

Citations 4

"Design And Application Of A Micro-versatile Phase Separator For Continuous Liquid-liquid Extraction. 2. Analytical Performance Of Flow Injection Solvent Extraction Spectrophotometry For The Determination Of Iodide"
Yankuang Ceshi 1998 Volume 17, Issue 1 Pages 29-32
Lin Shoulin, Zheng Qunxiong

Abstract: A glass gravity separator for continuous liq.-liq. extraction system was developed and used for the determination of trace iodide ion by online extraction-spectrophotometry. The separator provides several advantages over the existing ones reported in the literatures. The flow ratio of aqueous mobile phase to organic mobile phase (.upsilon.aq:.upsilon.org) is 30. The linear range for I- is 0-3.000 mg/L with detection limit of 70 µg/L. A precision of 2.2% relative standard deviation (1 mg/L of I-, .eta.=7) and a sample throughput of 25/h were obtained. The method was applied to the determination of I- in kelp with standard addition recovery of 98%.
Iodide Plant Spectrophotometry Solvent extraction Apparatus Phase separator Standard additions calibration

"Present Situation And Perspective Of The Application Of Flow Injection Analysis To Rock And Mineral Analysis"
Yankuang Ceshi 1992 Volume 11, Issue 1-2 Pages 109-115
Lin, S.L.

Abstract: A review is presented, with 56 references. Current situation, potentiality, relevant problems and prospects of flow injection analysis are discussed.
Geological Geological Review

"Determination Of Palladium By Flame Atomic Absorption Spectrometry Combined Online With Flow Injection Preconcentration Using A Micro-column Packed With Activated Carbon Fibre"
Talanta 1995 Volume 42, Issue 7 Pages 921-926
Soulin Lin*, Chunsong Zheng and Guizhen Yun,

Abstract: A flow system (diagrams given) comprising a microcolumn (2.5 cm x 3 mm i.d.) packed with activated carbon fiber was used for the pre-concentration of Pd before determination by flame AAS. A similarly packed second column increased the sensitivity by doubling the analytical signal. The two columns wee in parallel in the pre-concentration mode and connected in series in the elution mode. The best pH value for retention of the metal was 3; dilute HCl was added to adjust the pH. The calibration graph was linear up to 30 ng/ml and the detection limit was 0.3 ng/ml. The RSD (n = 8) was 3.9%. Effects of interferents are tabulated. The method was applied to the determination of Pd in rock samples. Rock (0.1 g) was wetted with water in a PTFE crucible and 10 mL HF was added, heated and evaporated to dryness. Aqua regia (15 ml) was added, with gentle heating and evaporated to near dryness. HCl (2 ml) was added and the volume was made up to 100 mL with water. A portion (1 ml) was analyzed as above.
Palladium Geological Sample preparation Spectrophotometry Preconcentration Column Carbon fiber Interferences Activated carbon

"Design And Application Of A New Phase Separator For Flow Injection Liquid-liquid Extraction"
Spectrochim. Acta B 1996 Volume 51, Issue 14 Pages 1769-1775
Soulin Lin*, Qin Shuai, Haiou Qiu and Zhiyong Tang

Abstract: A diagram of the proposed all-glass separator is presented, together with diagrams of manifolds incorporating the separator for use with flame AAS, ICP-AES and spectrophotometry. It shows improved long-term stabi, robustness and degree of phase separation by comparison existing separators, and per integral in situ collection of the extract at different phase flow-rate ratios.
Spectrophotometry Sample preparation Phase separator Apparatus Solvent extraction