Sample preparation and heavy metal determination by atomic spectrometry /

Microwave digestions of mercury in Standards Reference Material (SRM) coal samples with nitric acid and hydrogen peroxide in quartz vessels were compared with Teflon® vessel digestion by using flow injection cold vapor atomic absorption spectrometry. Teflon® vessels gave poor reproducibiUty and tended to deliver high values, while the digestion results from quartz vessel show good agreement with certificate values and better standard deviations. Trace level elements (Ag, Ba, Cd, Cr, Co, Cu, Fe, Mg, Mn, Mo, Pb, Sn, Ti, V and Zn) in used oil and residual oil samples were determined by inductively coupled plasma-optical emission spectrometry. Different microwave digestion programs were developed for each sample and most of the results are in good agreement with certified values. The disagreement with values for Ag was due to the precipitation of Ag in sample; while Sn, V and Zn values had good recoveries from the spike test, which suggests that these certified values might need to be reconsidered. Gold, silver, copper, cadmium, cobalt, nickel and zinc were determined by continuous hydride generation inductively coupled plasma-optical emission spectrometry. The performance of two sample introduction systems: MSIS™ and gas-liquid separator were compared. Under the respective optimum conditions, MSIS^"^ showed better sensitivity and lower detection limits for Ag, Cd, Cu, Co and similar values for Au, Ni and Zn to those for the gas-liquid separator.

2003 AUCC Agreement

Scanned PDF of original document

Collective Labour Agreement between the Public Utilities Commission of the City of St. Catharines and Local 556, The International Brotherhood of Electrical Workers, 1952

In 1952, Local 556 of The International Brotherhood of Electrical Workers negotiated a contract with The Public Utilities Commission of the City of St. Catharines. The contract was to be in effect from July 1952 to September 1953. The document is unsigned.

Sales Agreement - July 30th, 1851

A sales agreement between Alexander Lattimore of Wainfleet and John Gordon of Gravelly Bay to William Cowan of Dunville, sale of a scow called "Welland", July 30th 1851.

Draft News Release - Great Lakes Water Quality Agreement

A News Release draft to be sent to "100 newspapers, radio and television stations (virtually all those with offices within 20 miles of the Lakes), make them available to the Press Gallery, special interest groups, trade publication and Mayors etc. of Great Lake-side communities". The release discusses the need for an upgrade to "the 1972 Canada-U.S. Great Lakes Water Quality agreement". Within the document, O'Sullivan is quoted that the agreement "should be upgraded to become a treaty with the United States, so that after all the effort which has already been put into tyring to clean up the Great Lakes we the provision which provides for cancellation by either party giving twelve months (notice) to do so". The total report is 61 pages in length.

JR WB ba

Brown sediment with clasts ranging from small to large in size. Clast shape ranges from angular to sub-rounded. Rotation structures are common in this sample, especially around larger clasts. Lineations and grain crushing is also present within this sample. A few comet structures can also be seen.

Indenture of Agreement for Sale of Land between Samuel Woodruff to Calvin and Ezekiel Cudney

Indenture of Agreement for Sale of Land between Samuel Woodruff of St. Catharines to Calvin and Ezekiel Cudney of the Township of Niagara regarding a footpath and parts of the lots 9 and 10 on the Welland River (78 acres), Oct. 30, 1883.

Indenture of Agreement for Sale of Land between Samuel Woodruff to Calvin and Ezekiel Cudney

Indenture of Agreement for Sale of Land between Samuel Woodruff of St. Catharines to Calvin and Ezekiel Cudney of the Township of Niagara. This is a copy of the previous document but there is an additional note on this document about an “agreement for cutting timber”. This is signed by S.D. Woodruff, Jan. 1885.

Indenture of Agreement for Sale of Land between S.D. Woodruff and Elizabeth Cudney

Indenture of agreement for Sale of Land between S.D. Woodruff of St. Catharines and Elizabeth Cudney of Willoughby regarding a footpath and Lots 9 and 10 in Willoughby, Feb. 6, 1893.

Indenture of memorandum of an agreement between S.D. Woodruff and James L. Burton and M. Burton

Indenture of memorandum of an agreement between S.D. Woodruff of St. Catharines and James L. Burton and M. Burton, both of Barrie, trading under the name of Burton and Bro. that Burton and Bro. would buy all the pine timber located in berths 192 and 198. Burton and Bro. agrees to have all timber cut. The agreement is signed by S.D. Woodruff and Burton and Bro. This document is badly burned along the left hand side. This does not affect the text, July 11, 1877.

Agreement between S.D. Woodruff and Nathaniel Dyment of Barrie

Agreement between S.D. Woodruff and Nathaniel Dyment of Barrie. S.D. Woodruff is the owner of license no. 198 of season 1877/78 for berth no. 198. S.D. Woodruff has agreed to sell this license, Nov. 23, 1877.

Agreement to undertake construction and complete the road in accordance with the engineer or the Port Robinson and Thorold macadamized road

Agreement to undertake construction and complete the road in accordance with the engineer or the Port Robinson and Thorold macadamized road. This is signed by John Williams, Aug. 11, 1855.

Article of agreement between Alexander Cook, contractor of Humberstone and the Provisional Municipal Council of the county of Welland

Article of agreement between Alexander Cook, contractor of Humberstone and the Provisional Municipal Council of the county of Welland to construct and build the main drain through the marsh lands tract commencing in lot no. 27 in the 4th concession in the township of Humberstone in a southerly direction (6 pages, handwritten). This is signed by John Frazer, Provisional Warden, Dexter Deverardo and Alexander Cook. (2 copies), Dec. 30, 1854.

Indenture of agreement between the Great Western Railway Company and the Erie and Ontario Railway Company

Indenture of agreement between the Great Western Railway Company and the Erie and Ontario Railway Company in order for the companies to unite, March 20, 1854.