Patents
Search within the title, abstract, claims, or full patent document: You can restrict your search to a specific field using field names.
Use TI= to search in the title, AB= for the abstract, CL= for the claims, or TAC= for all three. For example, TI=(safety belt).
Search by Cooperative Patent Classifications (CPCs): These are commonly used to represent ideas in place of keywords, and can also be entered in a search term box. If you're searching forseat belts, you could also search for B60R22/00 to retrieve documents that mention safety belts or body harnesses. CPC=B60R22 will match documents with exactly this CPC, CPC=B60R22/low matches documents with this CPC or a child classification of this CPC.
Learn MoreKeywords and boolean syntax (USPTO or EPO format): seat belt searches these two words, or their plurals and close synonyms. "seat belt" searches this exact phrase, in order. -seat -belt searches for documents not containing either word.
For searches using boolean logic, the default operator is AND with left associativity. Note: this means safety OR seat belt is searched as (safety OR seat) AND belt. Each word automatically includes plurals and close synonyms. Adjacent words that are implicitly ANDed together, such as (safety belt), are treated as a phrase when generating synonyms.
Learn MoreChemistry searches match terms (trade names, IUPAC names, etc. extracted from the entire document, and processed from .MOL files.)
Substructure (use SSS=) and similarity (use ~) searches are limited to one per search at the top-level AND condition. Exact searches can be used multiple times throughout the search query.
Searching by SMILES or InChi key requires no special syntax. To search by SMARTS, use SMARTS=.
To search for multiple molecules, select "Batch" in the "Type" menu. Enter multiple molecules separated by whitespace or by comma.
Learn MoreSearch specific patents by importing a CSV or list of patent publication or application numbers.
セレンの定量分析方法
JP4351946B2
Japan
Description
translated from
工業排水試験方法（ＪＩＳ Ｋ０１０２の６７．１〜６７．３），社団法人日本工業用水協会，１９９８年４月２０日
Claims (3)
Hide Dependent
translated from
- 試料に含まれるセレンの定量分析方法であって、
大気圧より大きい圧力の酸素雰囲気下において、吸収液が注入された耐圧容器内で試料を燃焼する工程と、
前記吸収液を回収し、過酸化物を添加した前記吸収液を加熱して前記吸収液に含まれる有機物を分解するとともにセレンを酸化させる工程と、
加熱分解した前記吸収液を放冷する工程と、
放冷した前記吸収液に還元剤を添加した混合溶液を煮沸し、前記セレンを還元する工程と、
煮沸還元した前記混合溶液を放冷する工程と、
放冷した前記混合溶液にマスキング剤を添加する工程と、
マスキング剤を添加した前記混合溶液に含まれる不純物を除去する工程と、
不純物を除去した前記混合溶液に含まれるセレンを測定する工程と、
を含むことを特徴とするセレンの定量分析方法。 - 前記混合溶液を煮沸還元する工程は、前記混合溶液を１０分間以上煮沸し、前記セレンを還元することを特徴とする請求項１に記載のセレンの定量分析方法。
- 前記過酸化物が過マンガン酸カリウムであることを特徴とする請求項１又は２に記載のセレンの定量分析方法。