| 摘要 |
The invention relates to a multiple oil-emission device for hydrocarbon emissions in an exhaust-gas mixture, comprising: an exhaust-gas probe (1), which has a transfer capillary (2); and a measurement channel, which has an ion source (3) and a filter apparatus (4) having a measuring apparatus (5). The transfer capillary (2) has a drop-catching apparatus (22) at the tip (21) of the transfer capillary, which drop-catching apparatus comprises a short throttle segment (23) and a transfer segment, which adjoins the throttle segment in a flow direction and is at least ten times longer. The measuring apparatus (5) is connected to an analyzing apparatus (6), which comprises a classifier (61) for vaporous oil constituents and oil constituents in the form of drops. The classifier makes possible a differentiation between vaporous constituents and constituents in the form of drops, which makes robust and accurate determination possible regardless of the operating point thanks to the collection of constituents in the form of drops which is improved according to the invention. |
